I’ve been using Denoise AI from LR for a while without any problems. I just upgraded to Photo AI 2.1.2. I select the photo in LR and select the Photo AI plugin. It prompts me for the options and then duplicates my selected image on the strip. I then expect Photo AI to open, but it doesn’t. I don’t even get an error message from LR, like I see others on here report.
Topaz Photo AI [v2.1.2] on [Windows10]