It seems counterproductive to access the Photo AI RAW processor by going to Lightroom CC, File, Plugin Extras, Process with Topaz Photo AI. You have a plugin for Lightroom CC for Topaz Photo AI, but none for Topaz Photo AI RAW processor. I also think you need to change the name to include “RAW”
Currently the File > Plug In Extras will process RAW photos and the Photo > Edit In will process RAW photos as TIFs.
Thanks for your input, I can see how it can be unclear which workflow is for which file type.