This is the fix that resolves the issue for the vast majority of users. Over time, your GPU stores compiled shaders in a "cache" to load them faster next time. If one of these cached files becomes corrupted, the game will crash every time it tries to load it.
Download the latest drivers from the Official NVIDIA Site and select "Custom (Advanced)" during installation, then check "Perform a clean installation." err-gfx-d3d-shader-1
Corrupted cache is the #1 culprit. Force the game to rebuild shaders from scratch. This is the fix that resolves the issue
To fix the problem, we first need to understand the language of the error. Let's break down the code: err-gfx-d3d-shader-1
Standard updates sometimes leave old, conflicting files behind. Use a "Clean Install" option during the driver setup: