Compatibility Report

• Name of the game with compatibility issues: Piczle Lines DX+α
• Steam AppID of the game: 998790

System Information

• Link to full system information report as Gist:
• Proton version: 9.0-4

I confirm:

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

steam-998790.log

Symptoms

As said on ProtonDB:

on the latest proton the mouse wheel would not work

Reproduction

Open the game and go through the How To Play, a.k.a third option of the start menu, until it asks you to use the scroll wheel.