Cannot get Gigapixel 8.3.0 to load at all

Dell precision workstation 5540, 64gb RAM, win 11 24H2, photoshop 26.5. have run the repair, deleted app completely, done clean installs. when i click on the icon outside photoshop nothing happens, task manager does not indicate that the executable has loaded. within photoshop I see this, then nothing more: “You are invoking a Topaz plugin. To return to the host editor, complete or terminate the plugin.”

Appreciate any advice. Have been a Topaz user for many years and love these products!!

I am having the same issue with 8.3.3. Dell Inspiron 3650, Windows 10 Pro,

I uninstalled, manually deleted all the program folders, and then tried again - that worked.