Atelier Sophie 2: The Alchemist of the Mysterious Dream (1621310)

Compatibility Report

• Name of the game with compatibility issues: Atelier Sophie 2: The Alchemist of the Mysterious Dream
• Steam AppID of the game: 1621310

System Information

• GPU: RTX 2070 Super (mobile)
• Driver/LLVM version: NVIDIA 515.43.04-1
• Kernel version: 5.17.7-zen1-1-zen
• Link to full system information report as Gist: https://gist.github.com/IBJamon/577afc0053495e49e04349a5a76178c8
• Proton version: Proton Experimental

I confirm:

• that I haven't found an existing compatibility report for this game.
• that I have checked whether there are updates for my system available.

Symptoms

The game plays extremely well with the latest Proton Experimental (as of 5/15/2022). The starting movie plays, the audio and graphics are nearly perfect. I played the game for several hours with no issues, until I uncovered a special fishing spot for the first time. Then a helpful tutorial video pops up embedded into the game. This video does not display, but you instead get the broadcast bars.

Reproduction

Get to a point in the game with an embedded tutorial video that is not full screen, but within the game window.

Screenshot attached.

The report names no source file, test, or code entry point; start by reproducing the embedded tutorial-video failure with Proton Experimental and reviewing the attached screenshot. Done would require identifying the rendering problem and verifying that the in-game tutorial video displays correctly.