Grid accent shadows flicker/pulsate/clip since Hostile Encounters update, at any graphics setting

SUMMARY

Since the recent Hostile Encounters game update, all block accent shadows flicker/pulsate/clip constantly. Changing graphics settings does not stop it: it happens with everything lowered to minimum and with everything raised to maximum. Shadows resulting from the sun or a light source hitting a solid object seem unaffected.

I'm running the game on Linux through Proton.

STEPS TO REPRODUCE

1. Launch Space Engineers 2

2. Load Concordia Research Facility

3. Look at catwalk surfaces, grooves on completed armor blocks, incomplete armor blocks, accent shadows on production/function blocks.

EXPECTED

Shadows stay stable.

WHAT I'VE TRIED

- Set all graphics settings to minimum: flicker still occurs.

- Set all graphics settings to maximum: flicker still occurs.

- Turned raytracing off and switched anti-aliasing away from FSR

SYSTEM

- Game version: 4.0.0.3165

- Steam last updated the game: 24 October 2026

- OS: Bazzite Linux (Fedora 44 based), kernel 7.2.11

- GPU: NVIDIA GeForce RTX 3090 24 GB

- NVIDIA driver: 615.78.08

- Compatibility layer: GE-Proton11-1

- Launch option: PROTON_HIDE_NVIDIA_GPU=1 %command%

SETTINGS AT GAME START

- Anti-aliasing: FSR

- Scaling mode: NativeAA

- Raytracing: High

- Sun shadow: Extreme

- Local light shadow: Extreme

- Lighting: Extreme

- Terrain: High