Topaz Deniose artefacts in highlights issue

Hi guys. Has anyone else had this issue in Topaz Denoise where the finished image has small pixel artefacts in the highlights?

Happens when exporting a tiff from the RAW file in Lightroom. Same thing happens when using Photoshop plugin.

Using a Mac M1 Mini with latest versions of Lightroom, Photoshop and Deniose. Has been happening to me for a few versions now.

Raise a support request at the main website please.