Locked Folder while playing Demon's Souls

I assume the locked folder means there's a process using some file inside the folder, which would be rpcs3.exe

When rpcs3 crashes, sometimes the process stays alive in the background (it's a bug). You have to go to task manager and forcibly terminate it.

Thanks for the insight.
At least twice to date the folder stays locked even after I take down the processes for the emulator and sometimes it goes back to normal. As for the renderer issue when it does crash, it happens with both vulcan and opengl, any setting I try and the same for both decoders.

I will try to force crash since it happens too easily in areas of extreme lag like area
1.1 or 3.2 of Demon's Souls. Sometimes it says it is a runtime error and can't write to disk which is why it causes it sometimes but other times the live log for the emulator while it is running shows a mass of red (which I "think") and yellow text.

I will try to get the purple line of text to show you at another date since I don't want to force it and lose my progress again.

---

This is only one of the 5 types of purple errors I get when the game crashes. This one doesn't break the emulator or the game so I can continue playing by restarting the emulator.

---

I got that purple error that breaks my emulator