Shadowverse not starting (453480)

Compatibility Report

• Name of the game with compatibility issues: Shadowverse
• Steam AppID of the game: 453480

System Information

• GPU: ATI Radeon HD 6870
• Driver/LLVM version: 3.1 Mesa 19.1.0-devel
• Kernel version: 4.15.0-45-generic
• Link to full system information report as Gist: https://gist.github.com/Pawana93/ce6f1930f343d5a271ca3d01dc25f778
• Proton version: 3.7-8

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.

https://gist.github.com/Pawana93/2006d29bae10406d87d7171e1c13f8e5

Symptoms

I installed the game, clicked on play. Steam showed "running" for a short time and it got removed not even a second later. The game haven't started.

I tried the tip from the issue #1398 to add PROTON_NO_D3D11=1 %command% as startup parameter, but it doesn't work either.

Reproduction

Every time I start the game

Start by reviewing the compatibility report, the linked Proton log gist, and issue #1398, then reproduce the failure with Proton 3.7-8 using the reported hardware and launch options. Done means identifying a reproducible cause and confirming that Shadowverse starts successfully with the resulting change.