Photoshope CS5 error

Running a fresh and recent installation of the Topaz package including Gigapixel AI and an existing version on PS CS5. I can view Gigapixel in PS under file/automate but when I attempt to use it while editing an image I get this error:

Could not complete the Topaz Gigapixel AI command because of a program error

I did attempt to trouble shoot by placing a fresh copy of the plugin in PS and enabled Topaz as directed in preferences.

The other odd challenge is that if I launch PS CS5 directly the link for Gigapixel, Sharpen, Denoise and Photo AI are not available. If I launch CS5 by double clicking an image all the prompts are available and Sharpen, Denoise and Photo AI work as intended.

I am working with all the latest releases of the Topaz software on a windows 11 machine.

Windows 11 - Intel Core i7-10510U CPU @ 1.80GHz 2.30 GHz - 12.0 GB (11.8 GB usable) - 64-bit operating system, x64-based processor