I recently installed Corel 2020 for testing and noticed a strange incompatibility with Bullzip PDF printer.
When Corel is running the Bullzip user interface gets all messed up like button names showing up instead of caption.
I attach a screen shot. The problem goes away when Corel 2020 is not running and doesn't show with Corel previous versions
Win 11, Bullzip version 14 and Corel 2021, still has the same problem...