It happens almost every time I edit >1 photo at a time. Sometimes just one photo is wrong, sometimes 2 or 3 are.
In case it helps, my Topaz Photo AI version is 1.4.2.
Just now I’ve edited 4 photos. As you can see, the first 3 images are correct, but the 4th image _64A9365-Edit is actually the same image as _64A9358-Edit, and not the same as image _64A9365.