This black preview issue that was happening in v1.3.2 is now resolved in v1.3.3, you can update from in-app or with these links:
Topaz Photo v1.3.3
Windows: Download
Snapdragon: Download
Apple Silicon Mac: Download
Intel Mac: Download
If any issues remain, write to support@topazlabs.com with details of the issue and Logs (Help > Open Logs folder) and we can troubleshoot.
