Program not opening due to DLL's without digital signature

[E Barret]

my Steam copy of Substance Painter 2022 was working fine until yesterday (22/11/24), but sudently today it wont open and an error for 4 dll's appears that reads: ''Some features of Adobe Substance Painter 8.3.1 may not work because we can't confirm who published (DLL) that the app tried to load.''
The DLLs giving the error are: usd.ms.dll, assimp.dll, OpenColorIO_2_1.dll and embree3.dll.

I tried a bunch of troubleshooting including, re instaling the app, verifying the integrity of the files, sfc scan on the cmd but windows continues to block due to the lack of a digital signature in the dll's.

Any ideas on how I can fix this?

I believe Adobe should provide a patch with signed dll's to avoid false flags by windows in the future.

[Cyril Dellenbach]

Hi @E Barret,

I'm investigating on your issue. I'll let you know as soon as I have something to share.

Regards,

[Cyril Dellenbach]

I've also tried the 2022 version of Substance 3D Painter on my end, but no issue. Which Windows version are you using ? Have you already launch the app as administrator ? If you rollback Painter to a previous version (RMB > Properties > Beta), is it still not opening ?

Keep me posted.

[E Barret]

Hi Cyril, thanks for the response.
I'm using Windows 11 Home. I also tried to open the program as an administrator and roll back to previous versions on Steam; however, the problem persists; Windows keeps notifying the same dlls, and the program won't open. Some people suggested I just disable Smart App Control, but I'm hopeful that must be a less intrusive solution for this problem.