I wanted to reach out again and let you know that we recently released Topaz Photo AI v3.1.3, which hopefully resolved the issues you previously reported while working with the Topaz Photo AI plugin for Lightroom Classic!
You can use your in-app update option found in the top right corner of your application window or use the following link to download the installer for v3.1.3:
Topaz Photo AI | v3.1.3 | MacOS Installer
I’ve included a link below with a full list of changes and bug fixes for this version release. Please let us know if you have any issues updating to this version or if the problem you initially reported remains!
Topaz Labs | Community Forums | Photo AI | Releases | v3.1.3
We appreciate your patience and collaboration while the Developers were fixing this issue 
