Denoise AI: not working in an other account as by installation

Hello experts. On Win10 I installed Denoise AI in the Windows Admin-Account. But I want to use it on an different account as standard user. The program is starting in standard user mode an I logged in in the Topaz-Account. I can open images but when I want to update the screen for preview nothing happens. There is no hang of the program, it only does nothing. I gave the standard-account admin rights for testing if rights are the problem, but that didn’t help.

Thanks for your help and sorry for my english.