Participant

Substance 3D Painter 12.1.3 crashes on startup (Steam and Adobe versions)

Forum|Forum|10 days ago
August 27, 2026
2 replies
170 views

After updating to Substance 3D Painter 12.1.3, I can no longer launch the application.

The application crashes during startup and closes before it can fully launch.

I tested both the Steam version and the Adobe version, and the same issue occurs with both.

Version 12.1.2 works without any issues, and the problem only occurs with 12.1.3.

Error or problem

Cyril Dellenbach

Community Manager

Hello @sushi,

Have you already check this page?

Otherwise, I strongly advise you to make a clean reinstall ; meaning deinstall Painter and delete preferences and app data.
https://experienceleague.adobe.com/en/docs/substance-3d-painter/using/pipeline-and-integration/installation-and-preferences/preferences-and-application-data-location

This usually solve this kind of launch problems.

Let me know.

Cyril Dellenbach (Micro) | Product Manager | Substance Painter

S

sushiAuthor

Participant

Thank you for your help.

I found that the issue seems to be related to my existing assets folder.
After renaming/moving the assets folder, Substance 3D Painter 12.1.3 was able to launch successfully.

With the original assets folder, 12.1.3 crashes during startup, while 12.1.2 works normally with the same assets.

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