Disable any antivirus, firewall, VPN, or proxy software that might be active on your computer. These tools sometimes interfere with the installer’s ability to download the model files.
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 | MacOS | Example of Proper System Preferences