Fixing Active Matter Fullscreen Graphical Artifacts: A Guide

Start with known graphics fixes

Fullscreen flicker, broken lighting and window-resize freezes can have software causes. One corrupted frame does not prove hardware damage. Note whether the effect is reproducible in fullscreen, borderless or windowed mode, and whether it occurs with Vulkan or DirectX 11. Use only modes available in your current client.

Update 0.4.0.182 (October 9, 2026) fixed Vulkan lighting artifacts after graphics-device resets, flickering on Steam Deck and some AMD cards, memory-pressure stutter, and DirectX 11 freezes including window resizing and error recovery. These fixes identify known software issues; they do not diagnose every remaining crash or guarantee that a specific machine is fixed.

A bounded troubleshooting sequence

1. Record the game version, OS, GPU, driver version, graphics API and exact error. Note whether it fails at launch, character selection, loading, a particular raid, or a window-mode change.
2. Update the game and verify its files. The Steam requirements specify an SSD; they do not require an NVMe M.2 drive specifically.
3. Reproduce the same scene with one change at a time. Compare window modes or an available graphics option, retaining the original values. A lower setting is a test, not proof of the root cause.
4. Temporarily turn off one optional overlay at a time if it correlates with the failure. Restore it when ruled out. Do not disable security software or anti-cheat as a workaround.
5. Use supported graphics drivers. If a driver change coincides with the problem, record both versions and consult the hardware vendor's guidance rather than immediately wiping drivers or reinstalling Windows.

Configuration edits and reporting

Back up any configuration file before editing it. This guide has not verified a universal file path or a GI parameter that fixes all systems, so it does not prescribe one. Prefer settings exposed in the game; reverse unsuccessful experiments. If the fault persists, send the version, error, reproduction steps and relevant logs to Gaijin support. Remove account secrets from attachments.

A crash or visual symptom alone does not identify a failing GPU. If corruption also appears outside the game, investigate the display connection and hardware with the manufacturer's support; that observation still does not isolate a component by itself.

FAQ

Is there a guaranteed fix?

No. The update fixes specific documented cases. Different symptoms and machines can have different causes; keep a before/after record rather than applying a bundle of changes at once.

Should I reinstall Windows or replace hardware first?

No. Start with the game version, reproducible symptoms and reversible tests. Neither an operating-system reinstall nor a hardware purchase follows from one game failure.

Can I keep testing in raids?

Use low-risk equipment while testing. Do not assume every disconnect preserves a loadout: the October fix specifically addresses connection failures that prevent spawning, not all mid-raid crashes.

Sources: October 9 update, Steam requirements.

Source: Active Matter FAQ.