From Lightroom Classic, when I send an image to Topaz Photo as a tiff with LR adjustments, the adjustments don’t not show on the Topaz screen. Several times in LR I have made exposure, and highlight and shadow adjustments, but they do not display in Topaz as adjusted. As a result I have used the Adjust Lighting module, only to find on export back to LR that the adjustment was actually added to the LR adjustment. So it appears that Topaz Photo is importing the adjusted images, but not not displaying those adjustments. I’ve noted this on other images, where the original image is shown, even when LR adjustments have been made.
I’m interested in you comments on work-arounds, or if this is considered a bug (my opinion).