09485: vblokbrk and clones: Eventually freezes after clearing a stage in the final 10 seconds

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
09485	Crash/Freeze	Critical (emulation)	Always	12 hours ago	4 hours ago

Tester	izius	View Status	Public	Platform	MAME (Official Binary)
Assigned To		Resolution	Open	OS	Windows (x64)
Status [?]	New			Driver	kaneko/suprnova.cpp
Version	0.288	Fixed in Version		Build	x64
		Fixed in Git Commit		Github Pull Request #

Summary	09485: vblokbrk and clones: Eventually freezes after clearing a stage in the final 10 seconds
Description	When you clear a stage in the final 10 seconds (there's an onscreen countdown), the game triggers a few strange behaviours: - the background image gets squashed horizontally; - the score and the bonus screen award are set to zero; - any following stage has no visible blocks and no possibility to move sideways; some opponents are visible, some have a squashed image; - most importantly, the game logic fails; some stages will auto-clear without any action required, but eventually the game freezes randomly - after an auto-clear / after you lose all lives / during the black transition screen after the bonus.
Steps To Reproduce	Start a new game and play in order to clear the last block during the final 10 seconds, when the countdown is shown.
Additional Information	I recorded 3 inps, showing a few possible outcomes that happens when the bug is triggered.
Github Commit

Flags	Regression
Regression Version	0.211
Affected Sets / Systems	vblokbrk and clones

Attached Files	vblokbrk.zip (102,699 bytes) 12 hours ago Uploaded by izius inp showing the bug - freezes when losing the last life
	vblokbrka.zip (80,783 bytes) 12 hours ago Uploaded by izius alternate inp on a cloneset - freezes after two auto-clears
	0001.png (4,862 bytes) 12 hours ago Uploaded by izius Screenshot taken when the game froze - vblokbrk
	0002.png (2,704 bytes) 12 hours ago Uploaded by izius Screenshot taken when the game froze - vblokbrka
	sarukani.zip (80,217 bytes) 4 hours ago Uploaded by izius alternate inp on a cloneset - freezes on a black screen after the bonus
	0003.png (409 bytes) 4 hours ago Uploaded by izius Screenshot taken when the game froze - sarukani

No.24426 Haze Senior Tester 11 hours ago	does it happen in sarukani ?
No.24427 Haze Senior Tester 11 hours ago	also you set regression version to 0.211, are you saying this definitely doesn't happen before that version?
No.24428 izius Tester 4 hours ago	Yes to both. It happens on the parent and every clone. I didn't post evidence for sarukani because I thought 3 inps for the same bug was excessive. In any case I just did one, and it behaved differently from the others (it just gave a black screen and froze there). I'll post it and update the report accordingly. As for the regression, it definitely happens on 0.211, but I wasn't able to trigger it on 0.210. I can record an inp or two for those versions if needed.