| ID | | | Version | Driver | Category [?] | Severity [?] | Status [?] | Updated | Summary | Tester |
| | 06635 | | 5 | 0.188 | renegade.cpp | Speed | Minor | Resolved (Kale) | Jun 2, 2020 | renegade and clones: [possible] Possible speed issues | Machone |
| | 07669 | 1 | 2 | 0.221 | nemesis.cpp | Crash/Freeze | Major | Closed | Jun 2, 2020 | citybomb: BAD rams after soft reset | danylopez123 |
| | 07670 | 1 | 1 | 0.221 | nemesis.cpp | Crash/Freeze | Major | Closed | Jun 2, 2020 | salamand: Black Screen Freeze after Soft Reset | danylopez123 |
| | 07573 | | 5 | N/A | espial.cpp | Sound | Major | Confirmed | Jun 1, 2020 | netwars: Net Wars Sound incorrect: MAME version plays sound much slower than ARCADE version | mcp |
| | 07640 | 1 | 1 | 0.220 | armedf.cpp | Graphics | Minor | Resolved (sasuke) | May 31, 2020 | armedf and clones: Resolution is narrower than PCB | sasuke |
| | 07668 | | | 0.221 | seattle.cpp | Crash/Freeze | Critical (emulator) | Resolved (AJR) | May 31, 2020 | sfrush, sfrushrk and clones: [debug] Assert upon start | Tafoid |
| | 07664 | | | 0.221 | skylncr.cpp | Crash/Freeze | Critical (emulator) | Resolved (AJR) | May 31, 2020 | All machines in skylncr.cpp: [debug] Assert upon start | Tafoid |
| | 07665 | | | 0.221 | changyu.cpp | Crash/Freeze | Critical (emulator) | Confirmed | May 31, 2020 | All machines in changyu.cpp: [debug] Assert upon start | Tafoid |
| | 07659 | 4 | 4 | 0.220 | vsmile.cpp | Crash/Freeze | Major | Confirmed | May 30, 2020 |  vsmile [scoobydo]: Crash in Scooby Doo Funland Frenzy (USA) | henhouseharry |
| | 07662 | | 2 | 0.221 | coco3.cpp | Interface | Minor | Acknowledged | May 30, 2020 | coco3: Snapshot of RGB screen doesn't work. | tlindner |
| | 07620 | | 7 | 0.220 | tubep.cpp | Gameplay | Minor | Resolved (hap) | May 30, 2020 | tubep, tubepb: "GAME OVER" display is skipped | sasuke |
| | 07621 | | | 0.220 | tubep.cpp | Sound | Minor | Confirmed | May 29, 2020 | tubep, tubepb: The explosions and shots sounded different | sasuke |
| | 07587 | 1 | 1 | 0.219 | hh_sm510.cpp | Graphics | Minor | Confirmed | May 28, 2020 | Artwork: multi-screen layer blending problem with BGFX | hap |
| | 07655 | 1 | 6 | 0.220 | armedf.cpp | Graphics | Minor | Confirmed | May 28, 2020 | legionj: The attract demo is displayed incorrectly. | sasuke |
| | 05766 | | 1 | 0.155 | armedf.cpp | Documentation | Typo | Resolved (J.J.Boy) | May 27, 2020 | armedf, armedff: Armed Formation(armedf) need rename to "Armed F" | J.J.Boy |
| | 00434 | | 2 | 0.36rc2 | gaplus.cpp | Graphics | Minor | Resolved (sasuke) | May 27, 2020 | gaplus: In the reverse scrolling stage after the challenging stage, the background should scroll more quickly. | Fujix |
| | 07663 | 1 | 1 | 0.221 | gaplus.cpp | Graphics | Minor | Resolved (sasuke) | May 27, 2020 | gaplus and clones: Display range of background stars is different from PCB. | sasuke |
| | 07269 | | 3 | 0.207 | seta2.cpp | Graphics | Minor | Resolved (Haze) | May 26, 2020 | penbros and clones: Wierd scrolling screen | Leezer |
| | 06456 | | 5 | 0.180 | seta2.cpp | Graphics | Minor | Resolved (Haze) | May 25, 2020 | mj4simai: Missing transition graphical zoom/spin effect | system11 |
| | 06901 | | 12 | 0.195 | snes.cpp | Crash/Freeze | Major | Resolved (AmatCoder) | May 24, 2020 | snes [jdredd and clones]: Judge Dredd (all regions) stops working after title screen | Gryzor1363 |
| | 05538 | 2 | 8 | 0.153 | bfcobra.cpp | Crash/Freeze | Critical (emulation) | Confirmed | May 23, 2020 | all sets in bfcobra.c: Game stops on 1st screen, just keeps beeping like some kinda alert. | kamilz |
| | 05926 | 4 | 3 | 0.160 | megadriv.cpp | Graphics | Minor | Confirmed | May 22, 2020 | genesis [clue]: Graphics issue at title screen | Andrew |
| | 07661 | | | 0.220 | cps1bl_pic.cpp | Media Support | Minor | Acknowledged | May 20, 2020 | wofpic: Reference video from "Warriors of fate" (bootleg with PIC16C57) | Fortuna |
| | 07650 | | 2 | 0.62 | rallyx.cpp | Misc. | Trivial | Acknowledged | May 18, 2020 | New Rally-X (vertical hack): This 'IS" a common bootleg found in south america and europe | Fortuna |
| | 07658 | | | 0.220 | nes.cpp | Sound | Major | Confirmed | May 17, 2020 | nes [ajyureir]: no sound | kmg |
| | 07657 | | 2 | 0.220 | selz80.cpp | DIP/Input | Minor | Resolved (AJR) | May 17, 2020 | selz80, dagz80: keyboard auto-repeats when it shouldn't, making the machine impossible to use | Robbbert |
| | 06027 | 4 | 2 | 0.165 | gaelco.cpp | Crash/Freeze | Critical (emulation) | Resolved | May 16, 2020 | bigkarnk: Game freezes under some circumstances | izius |
| | 06559 | 1 | 2 | 0.185 | apple2gs.cpp | Gameplay | Minor | Resolved (peterferrie) | May 16, 2020 | All sets in apple2gs.cpp: System 6.0.x freezes on boot | Luigi30 |
| | 00987 | | 5 | 0.56 | seta2.cpp | Speed | Minor | Resolved | May 15, 2020 | myangel: Bad syncronization in (one of) the ending of the game. | Kale |
| | 07369 | | 5 | 0.211 | namconb1.cpp | Graphics | Minor | Resolved (jkm900) | May 14, 2020 | machbrkr: Glitched animations | MetalGod |
| | 07647 | | 3 | 0.220 | atarisy1.cpp | Debugger | Minor | Acknowledged | May 13, 2020 | indytemp: Debugger load command loads incorrect saved data in indytemp | d18c7db |
| | 06022 | 2 | 5 | 0.164 | atarig1.cpp | Graphics | Minor | Confirmed | May 12, 2020 | pitfight: Pit-Fighter - Vertical gaps in the background scenes | rcoltrane |
| | 07653 | 1 | 3 | 0.220 | galaxian.cpp | Documentation | Trivial | Resolved (jkburks) | May 12, 2020 | galaxiani: Incorrect manufacturer and game title | jkburks |
| | 07649 | | 5 | 0.220 | specpls3.cpp | Crash/Freeze | Critical (emulator) | Closed | May 11, 2020 | specpl3e [capitans]: Capitan Sevilla cassete freezes after loading | StHiryu |
| | 07654 | | 1 | 0.220 | nes.cpp | Crash/Freeze | Critical (emulation) | Closed | May 11, 2020 | nes [guardic, guardlgnu]: Guardian Legend/Guardic Gaiden freezes (black screen) when starting game | joepublic |
| | 07648 | 2 | 1 | 0.220 | dkong.cpp | DIP/Input | Trivial | Resolved (xelnia) | May 11, 2020 | dkong3: Description of DIPs in MAME does not match arcade manual | xelnia |
| | 07652 | 1 | 1 | 0.220 | m10.cpp | Documentation | Trivial | Resolved (jkburks) | May 11, 2020 | andromed: Incorrect release year, company & game title | jkburks |
| | 07651 | 1 | 1 | 0.220 | warpwarp.cpp | Documentation | Trivial | Resolved (jkburks) | May 11, 2020 | sos: Incorrect release year, company & game title | jkburks |
| | 07551 | | 1 | 0.217 | nes.cpp | Crash/Freeze | Minor | Resolved (girosintornillos) | May 10, 2020 | nes [galivan]: Game freezes after press start or continue | girosintornillos |
| | 07638 | | 4 | 0.220 | subsino2.cpp | DIP/Input | Minor | Acknowledged | May 10, 2020 | xtrain, mtrain, ptrain: [possible] Oversensitive Bet key repeats immediately | joepublic |
| | 07642 | 1 | 5 | 0.220 | toaplan2.cpp | Graphics | Major | Acknowledged | May 10, 2020 | truxton2: sprites flicker or disappear during certain (perhaps graphically busy) parts of the game | mycophobia |
| | 05818 | | 4 | 0.157 | radio86.cpp | DIP/Input | Major | Confirmed | May 8, 2020 | kr03: Keyboard behaves strangely | demotester |
| | 06898 | 1 | 1 | 0.193 | 8080bw.cpp | Documentation | Typo | Resolved (GoldS_TCRF) | May 8, 2020 | spclaser and clones: Parent / clone relationship needs fixing | GoldS_TCRF |
| | 07171 | 1 | | 0.204 | megadriv.cpp | Documentation | Minor | Resolved (ArcadeShadow) | May 8, 2020 | genesis [babyboom]: Release year | ArcadeShadow |
| | 07198 | | | 0.205 | slapfght.cpp | Documentation | Typo | Resolved (AntoPISA) | May 8, 2020 | tigerh, tigerhb1, tigerhb2, tigerhb3, tigerj: In the description of the games listed there is no hyphen between the words "Tiger" and "Heli". | AntoPISA |
| | 07646 | 1 | 2 | 0.220 | 8080bw.cpp | DIP/Input | Trivial | Acknowledged | May 8, 2020 | galxwars, galxwars2, galxwarst, galxwarst2, starw, starw1: DIP switch documentation | jkburks |
| | 04825 | 1 | 12 | 0.145u8 | vendetta.cpp | Sound | Minor | Confirmed | May 8, 2020 | vendetta: In MAME the music tempo is slower than real PCB | Mamesick |
| | 07591 | | | 0.219 | pacman.cpp | DIP/Input | Minor | Resolved (dukdukgoos) | May 8, 2020 | crush, maketrax: Games constantly add to the coin counter in the background | dukdukgoos |
| | 07629 | 1 | | 0.220 | ladybug.cpp | Documentation | Trivial | Resolved (jkburks) | May 8, 2020 | snapjack: Incorrect release year | jkburks |
| | 07634 | | 2 | 0.220 | subsino2.cpp | DIP/Input | Minor | Resolved (joepublic) | May 8, 2020 | mtrain: Dip switch wording reversed for "Double Up" | joepublic |
| | 07635 | | 1 | 0.220 | subsino2.cpp | DIP/Input | Minor | Resolved (joepublic) | May 8, 2020 | mtrain: Incomplete input information for Stop2/Big and Stop3/Small keys | joepublic |
| | 05148 | 1 | 8 | 0.148 | ht68k.cpp | Misc. | Minor | Resolved (AJR) | May 8, 2020 | ht68k: Hangs at start | Robbbert |
| | 07643 | | | 0.220 | seta2.cpp | Gameplay | Critical (emulation) | Confirmed | May 8, 2020 | endrichs: Gameplay stops if player wins the double-up game | joepublic |
| | 07645 | | | 0.220 | megadriv.cpp | Sound | Major | Confirmed | May 6, 2020 | megadrij [teddyboy]: No sound BGMs | Kale |
| | 07561 | 1 | 2 | 0.218 | skyfox.cpp | Graphics | Minor | Confirmed | May 4, 2020 | skyfox, exerizer, exerizreb: Shorter vertical resolution than PCB | sasuke |
| | 07639 | | 2 | 0.220 | subsino.cpp | DIP/Input | Minor | Acknowledged | May 3, 2020 | victor6: [possible] Oversensitive Bet key repeats immediately | joepublic |
| | 07637 | 1 | 2 | 0.220 | subsino.cpp | DIP/Input | Minor | Acknowledged | May 3, 2020 | crsbingo: [possible] Oversensitive Setup screen inputs | joepublic |
| | 07626 | | | 0.220 | harddriv.cpp | DIP/Input | Minor | Confirmed | May 3, 2020 | strtdriv: Broken steering input | GeekyFerret |
| | 07475 | 1 | 3 | 0.215 | coco3.cpp | DIP/Input | Minor | Confirmed | May 3, 2020 | coco3: Joystick Buttons not working correctly from some ML games | drencorxeen |
| | 01813 | 1 | 2 | 0.125u1 | vendetta.cpp | Misc. | Critical (emulation) | Resolved | May 3, 2020 | vendetta and clones: Vendetta stuck at the rom ram check screen. | maquette2 |
| | 06572 | | 4 | 0.185 | ms32.cpp | Speed | Major | Acknowledged | May 2, 2020 | bnstars bnstars1: Incorrect emulation speed | system11 |
| | 07636 | 2 | | 0.220 | circusc.cpp | Graphics | Minor | Confirmed | May 1, 2020 | circusc and clones: [possible] Small graphic glitch in the 4th event | izius |
| | 07628 | | 1 | 0.220 | | Interface | Major | Acknowledged | Apr 30, 2020 | UI Configure Machine: Mame fails to load mame.ini when entering "Configure Machine" menu. | ozfalcon |
| | 07632 | 1 | | 0.220 | segac2.cpp | Debugger | Minor | Confirmed | Apr 30, 2020 | all games in segac2.cpp: game screen don't keep gfx when execute debugger command | JSDS |
| | 07633 | | | 0.220 | volfied.cpp | Gameplay | Minor | Confirmed | Apr 29, 2020 | volfied and clones: Enemies move differently from PCBs, so the attract demo stops in the middle. | sasuke |
| | 07631 | | 1 | 0.220 | dacholer.cpp | Sound | Minor | Acknowledged | Apr 29, 2020 | itaten: Part of sound tone is different from PCB. | sasuke |
| | 07622 | 1 | 2 | 0.220 | magmax.cpp | Sound | Minor | Acknowledged | Apr 29, 2020 | magmax: The explosions sounded different | sasuke |
| | 07624 | | 1 | 0.220 | mystwarr.cpp | Sound | Minor | Acknowledged | Apr 28, 2020 | mtlchamp and clones: Echo/reverb effect missing from voice and music samples. | Tempora |
| | 07627 | | 2 | 0.220 | gticlub.cpp | Gameplay | Minor | Confirmed | Apr 28, 2020 | gticlub (and clones): Tires constantly screeching | GeekyFerret |
| | 07625 | | | 0.218 | nes.cpp | Crash/Freeze | Critical (emulation) | Confirmed | Apr 28, 2020 | nes [dquest and doordoor]: games lock up, perhaps due to broken sound emulation | kmg |
| | 07623 | | 2 | 0.220 | tubep.cpp | Graphics | Minor | Closed | Apr 28, 2020 | tubep, tubepb: Sprites and BG scroll lag | sasuke |
| | 05233 | 2 | 8 | 0.149 | segas32.cpp | Graphics | Minor | Acknowledged | Apr 26, 2020 | ga2, ga2u, ga2j: Graphic differences | abelardator2 |
| | 07618 | 1 | | 0.218 | astrohome.cpp | Color/Palette | Major | Acknowledged | Apr 25, 2020 | astrocde and clones: Bally Arcade/Astrocade - Incorrect Color Palette | ballyalley |
| | 07616 | | 1 | 0.220 | segas32.cpp | Sound | Minor | Resolved (zozo) | Apr 25, 2020 | radr, radrj, radru: Wrong sounds. | alphabeta2 |
| | 07617 | 1 | 1 | 0.220 | rungun.cpp | Graphics | Minor | Resolved | Apr 25, 2020 | rungun: Graphic/Sprite offsets | kapitostes |
| | 07612 | 3 | 7 | 0.220 | m92.cpp | Crash/Freeze | Critical (emulation) | Acknowledged | Apr 24, 2020 | uccopsaru: [possible] Game seems to be stuck at the very end of stage 4 | John_Nada |
| | 00392 | | 3 | 0.97 | cischeat.cpp | Sound | Minor | Resolved (Kale) | Apr 24, 2020 | f1gpstar: During attract mode, the "orchestral hits" are played off-key. | SportsDude |
| | 07613 | | 3 | 0.220 | midwunit.cpp | Sound | Trivial | Acknowledged | Apr 23, 2020 | mk3: [possible] Audio Loops | Andrew |
| | 07615 | | | 0.220 | cninja.cpp | Documentation | Trivial | Resolved (jkburks) | Apr 23, 2020 | mutantf, mutantf2, mutantf3, mutantf4, deathbrd: Incorrect release year | jkburks |
| | 07606 | 3 | 6 | 0.219 | cps1.cpp | Graphics | Minor | Confirmed | Apr 21, 2020 | 3wonders: Midnight Wanderers attract mode sprite is clipped | hap |
| | 07614 | 2 | 2 | 0.220 | namcos21_c67.cpp | Graphics | Minor | Closed | Apr 19, 2020 | starblad: Exiting service mode graphics errors | Augusto |
| | 00836 | | 5 | 0.122u5 | m92.cpp | Graphics | Minor | Resolved | Apr 17, 2020 | uccops: There are some priority problems between foreground objects and messages like "Go" and "Mission Complete". | -Misc Reporters- |
| | 07611 | | | 0.220 | warriorb.cpp | Graphics | Minor | Confirmed | Apr 16, 2020 | warriorb: Map effect is not synced between game screens | samsho2 |
| | 07610 | 1 | | 0.220 | sprint2.cpp | DIP/Input | Minor | Acknowledged | Apr 12, 2020 | sprint2: Cannot slide the white or black car in 3rd or 4th gear because of the way the dial data is being read. | vidpro1 |
| | 07560 | | 2 | 0.218 | cave.cpp | Crash/Freeze | Critical (emulator) | Resolved (galibert) | Apr 9, 2020 | hotdogst: memdump command causes MAME crash | JSDS |
| | 07604 | 2 | 10 | 0.219 | m62.cpp | Speed | Minor | Closed | Apr 8, 2020 | kidniki: Kid Niki slow speed gameplay not using available CPU | Augusto |
| | 07451 | 1 | 8 | 0.214 | fb01.cpp | Misc. | Minor | Resolved (AJR) | Apr 7, 2020 | fb01: Test mode is not working due to an unmapped memory region | cmonkey |
| | 07609 | 1 | 2 | 0.219 | segaorun.cpp | Graphics | Minor | Resolved | Apr 7, 2020 | outrunb, outrundxa, outrundx, outrundxj, outrunra: Little graphic glitch in the music selector | Kekule |
| | 07607 | | 2 | 0.219 | segas32.cpp | Sound | Minor | Confirmed | Apr 6, 2020 | scross, scrossa, scrossu: No engine sound | Hydreigon |
| | 07605 | | | 0.219 | model1.cpp | Gameplay | Minor | Acknowledged | Apr 4, 2020 | vr: Random car jolts affecting speed | hydef |
| | 07602 | 3 | 2 | 0.219 | raiden2.cpp | Gameplay | Major | Resolved | Apr 4, 2020 | raiden2, raidendx, raiden: No collision on top edge of gameplay area | Kale |
| | 07603 | 1 | | 0.219 | snes.cpp | Documentation | Trivial | Resolved (ArcadeShadow) | Apr 3, 2020 | snes [asterix]: Incorrect release year | ArcadeShadow |
| | 07597 | 1 | 3 | 0.219 | kchamp.cpp | Save/Restore | Minor | Confirmed | Mar 31, 2020 | kchampvs3: Inp file playback gets out of sync right after finishing the game with 1cc | rcoltrane |
| | 07600 | | | 0.219 | starshp1.cpp | Gameplay | Minor | Confirmed | Mar 31, 2020 | starshp1, sharshpp: Planets appear too frequently | Antny |
| | 07601 | | 1 | 0.219 | arsystems.cpp | Sound | Minor | Closed | Mar 30, 2020 | ar_sdwr, ar_sdwr2: Sound problems | MetalGod |
| | 07529 | | 2 | 0.217 | model1.cpp | DIP/Input | Minor | Confirmed | Mar 28, 2020 | swa, swaj: Pedal (throttle) input is off-center | mmarino4 |
| | 07599 | | 1 | 0.219 | gottlieb.cpp | Sound | Major | Closed | Mar 27, 2020 | qbert: static sound after a few minutes | ufoDave |
| | 07598 | | 1 | 0.219 | | Interface | Minor | Confirmed | Mar 27, 2020 | Internal mouse cursor only shown on 1st screen with -numscreens 2 | hap |
| | 07595 | 1 | 5 | 0.219 | ddragon3.cpp | Graphics | Minor | Acknowledged | Mar 25, 2020 | ctribe: [possible] Sprite Player glitch | Augusto |
| | 07594 | 1 | 3 | 0.219 | ddragon3.cpp | Gameplay | Minor | Acknowledged | Mar 25, 2020 | ctribe: [possible] Player character don't lose energy in stage 2 | Augusto |