Slow First Launch After Updating: Shader Compilation
A longer first launch can be expected after the shader-version change documented in the Total Rebalance update. The game recompiles shaders after
FAQ
Why can the first launch take longer?
Does waiting fix every startup problem?
Why can the first launch take longer?
The official patch updates the shader version and says shaders will be recompiled on first launch. The developers explicitly warn that processing can extend that startup.

Does waiting fix every startup problem?
The announcement says the shader change addresses an issue that prevented many launches. It does not guarantee that every driver, hardware or corrupted-installation issue has the same cause.
What information should a report include?
Keep the game version, operating system, visible message and whether the issue occurs only on the first post-update launch. Those observations separate documented compilation from a repeatable failure.
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