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Weird texture pattern on Skyrim PBR texture mods when using Proton11 or ProtonGE11

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ValveSoftware/Proton#10041 · opened 2026-08-06 by DamonPrince · updated 2026-08-06 · 1 comments · github
DDamonPrince 2026-08-06 github
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Some PBR textures in Skyrim Special Edition (independent of the PBR texture packs used) display a strange animated warping pattern (see attached).

When using Proton 11 or Proton-GE 11, if the player character enters one of these affected areas, the warping pattern is also rendered on the character. The issue also affects nearby objects, causing them to appear as if they are covered by a moving animated pattern.

Switching back to Proton 10 or Proton-GE 10.3 immediately resolves the issue.

Troubleshooting performed

To verify that Proton is actually the cause, I tried the following:

Tested with multiple different PBR Landscape texture packs.
Changed various graphics settings.
Checked logs and INI configuration files.
Completely deleted the Wine prefix and reinstalled the game.
Tested multiple Proton versions:

Proton-GE 11.3
Proton-GE 11.1
Proton-GE 10.3
Proton 10

Switching to Proton 10 consistently fixes the issue immediately, while switching back to Proton 11 consistently reintroduces

the problem.

System

OS: Arch Linux
Kernel: Linux 7.1.5-zen1-2-zen
Desktop Environment: GNOME 50 (Wayland)
Motherboard: ASUS ROG STRIX X670E-E GAMING WIFI
RAM: 32 GB (2×16 GB) Corsair Vengeance (DOCP enabled)
CPU: AMD Ryzen 9 7950X3D
GPU: AMD Radeon RX 9070 XT

Kkisak-valve maintainer 2026-08-06 github

Hello @DamonPrince, we're using one issue report per unofficially supported game title, so I've gone ahead and transferred this issue report to https://github.com/ValveSoftware/Proton/issues/4#issuecomment-5199299556.

Upstream links