QuickNES crashed when I tried to switch games (Bizhawk 2.10)

[Grandmaster9918]

Summary

Loaded ROM: Akumajou Densetsu Japan
Loaded Core: QuickNES
Open Tools: PPU viewer.

Repro

1. Paused the game
2. Opened the PPU viewer
3. Tried to switch game
4. Emulator crashed

Output

System.IndexOutOfRangeException: Index was outside the bounds of the array.
   at BizHawk.Client.EmuHawk.NesPPU.HandlePaletteViewMouseMove(Point e) in /_/src/BizHawk.Client.EmuHawk/tools/NES/NESPPU.cs:line 669
   at BizHawk.Client.EmuHawk.NesPPU.Generate(Boolean now) in /_/src/BizHawk.Client.EmuHawk/tools/NES/NESPPU.cs:line 279
   at BizHawk.Emulation.Cores.Consoles.Nintendo.QuickNES.QuickNES.FrameAdvance(IController controller, Boolean render, Boolean rendersound) in /_/src/BizHawk.Emulation.Cores/Consoles/Nintendo/QuickNES/QuickNES.cs:line 352
   at BizHawk.Client.EmuHawk.MainForm.StepRunLoop_Core(Boolean force) in /_/src/BizHawk.Client.EmuHawk/MainForm.cs:line 3063
   at BizHawk.Client.EmuHawk.MainForm.ProgramRunLoop() in /_/src/BizHawk.Client.EmuHawk/MainForm.cs:line 898
   at BizHawk.Client.EmuHawk.Program.SubMain(String[] args) in /_/src/BizHawk.Client.EmuHawk/Program.cs:line 351

Host env.

• BizHawk 2.10, Windows 11, AMD64.

[Morilli]

I can't reproduce this. It could depend on the mouse position, the specific frame that was paused on and even which game you tried to switch to.

[YoshiRulz]

Based on the stacktrace I assume this is because WinForms events are async, so see also #3413.

[Grandmaster9918]

I can't reproduce this. It could depend on the mouse position, the specific frame that was paused on and even which game you tried to switch to.

I tried to switch to a genesis game.

[Morilli]

Based on the stacktrace I assume this is because WinForms events are async, so see also #3413.

I doubt it. The stacktrace shows the exception coming from a frame advance call inside of the normal program loop.

I tried to switch to a genesis game.

That's interesting information, however I still can't reproduce this by switching to a genesis game, the ppu viewer just closes before the genesis game is loaded (as would be expected).

[Grandmaster9918]

maybe it is a one time only bug, but it would be nice to improve stability.