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Participant
Aug 27, 2026 6:29 AM UTC
Open for Voting

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

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.

2 replies

Cyril Dellenbach
Community Manager
Community Manager
Aug 27, 2026 8:53 AM UTC

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.

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Cyril Dellenbach (Micro) | Product Manager | Substance Painter
sushiAuthor
Participant
Aug 27, 2026 12:38 PM UTC

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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