[BUG][Syphon Filter Dark Mirror]Progress Lock; Pvt Jensen freezewalks forever

[Shinchai]

Game or games this happens in

Syphon Filter Dark Mirror

What area of the game / PPSSPP

Episode 4, Part 2

At the part where you protect pvt. Jensen as he is chased by enemies, where you command him to move from position to position, on the second time you command (on the catwalks), he will get stuck in a walking animation forever.

Attempts to fix so far:

• Shoot him (does nothing)
• Ragdoll him with explosive sniper shot (instakills him)
• Let enemies shoot him (does nothing)
• Wait a long time (nothing happens)

What should happen

He shouldn't get stuck, and continue walking to his destination as normal.

Logs

No response

Platform

Windows

Mobile phone model or graphics card

rtx 2060

PPSSPP version affected

1.16.3

Last working version

No response

Graphics backend (3D API)

Vulkan

Checklist

• Test in the latest git build in case it's already fixed.
• Search for other reports of the same issue.
• Try resetting settings or older versions and include if the issue is related.
• Try without any cheats and without loading any save states.
• Include logs or screenshots of issue.

[hrydgard]

Do you know if it has worked in some previous version of the emulator?

[Shinchai]

Only knowledge I have of that are old forums where people have claimed they finished the game without issues. Those were around 2017 i think. As for my own, I won't be repeating the missions till the bug point for some time, it's just not fun playing a game as work.

[anr2me]

You should at least provide a save state near the problematic scene for testing purpose.
If you can find out which version was the last working one, it could help the devs in investigating the issue, otherwise it will take long before this can be fixed.

[Shinchai]

Google drive link: https://drive.google.com/file/d/1ez9z6uEJB2wZzh4er8DKwq65UlxD3UA_/view?usp=sharing

Press "SELECT" to trigger the character to move, he will get stuck shortly after.

[anr2me]

I've tried all CPU cores and also tried disabling all JIT functionality but doesn't seems to have any difference.
But, changing the CPU clock to 55 (which made the game run at 30 FPS instead of 60 FPS) seems to made a difference, where Pvt Jensen switches from "Moving" to "Cowering" when he's stuck, instead of keeps trying to walk/run in place.

[Shinchai]

I had a hunch 60 fps had something to do with it. Tried it and it worked albeit with teleporting enemies. Thanks, ANR2ME!

[hrydgard]

Well good to have a workaround, but the problem remains, so I'm reopening. Does seem like a game bug though, and we just run things a bit too fast...

[anr2me]

Btw, @Shinchai did you use 60 fps cheat when creating that save state? or the game ran at 60 fps even without cheat?

[Shinchai]

Btw, @Shinchai did you use 60 fps cheat when creating that save state? or the game ran at 60 fps even without cheat?

Nothing of the sort, I just install ppsspp and play game, though when I used ur trick and return to auto clock speed, it no longer remained 60 fps, so now I set clock speed to match screen refresh rate (144Hz) to remain at 60fps.

[LeyoSFO]

I had a hunch 60 fps had something to do with it. Tried it and it worked albeit with teleporting enemies. Thanks, ANR2ME!

as far as i'm aware, this game runs at 60 FPS natively (any one correct me if i'm wrong), so changing the FPS from 60 to 30 to pass this point in the game is merely a work around not an actual solution, it should work at 60 always