Is this version discontinued? It is launching from Lightroom and do it’s magic, but fail to save back?
Topaz Photo AI [v2.3.2.x] on Mac
Please follow the instructions below to perform a clean install to better troubleshoot why you had this problem with Topaz Photo AI:
First please make sure that you have Lightroom fully closed before proceeding.
Start by clearing any previous plist files that are on your computer for Topaz Photo AI by following the steps in the link below:
Topaz Photo AI | plist Files Mac
After you have done this, disable any antivirus, firewall, VPN, or proxy software that might be active on your computer. These tools are sometimes known to interfere with the installer’s ability to download the model files.
Please also ensure that the Topaz Photo AI installer has all the proper settings in your system by going to your Mac System Settings > Privacy & Security tab and scrolling down to the security section. You will want to make sure you have 'App Store and identified developers ’ selected. Here is a video example:
Example of Proper System Preferences
Finally, rerun the installer. You can download a new installer from the downloads page directly :
Let me know how that goes for you and I’ll keep an eye out for your reply.
You can delete all the Topaz Photo AI.plist files. After you have done this, make sure you permanently delete them from your trash bin.
You can also restart your machine after this process.
While trying to download the new installer, I was only able to download version 2.4.2 or 1.3.12, not version 2.3.2, which I use 
I don’t know why, but I get the same error message after reinstalling. It has work earlier but now only none raw processing works - annoying indeed 
If you are still experiencing problems please reach out to us at the following link:
