It should work with 3090. Did the application generated a crash_log.txt?
If it did not, you can open the application using cmd, that should show you the error.
I'm hoping you can help me - I get the dreaded error below when running DAIN app from a command prompt:
ImportError: DLL load failed while importing QtGui: The specified procedure could not be found.
[22412] Failed to execute script my_design
I did swap out the python3.dll file and the difference was that the app completed something after about 2 minutes with no error message, but nothing actually happening.
Any ideas on what to do next?