While processing thru LrC “File → Plug-in Extras → Process with Topaz Photo AI” as a copy, Photo AI saves DNG without any original camera EXIF data, from date/time taken to GPS…
There’s now only the date/time of editing, and “Topaz Photo AI 3.2.2 (Windows)” as a software proudly.
This issue was beginning a lot of time ago, from Photo AI v.3.0.3, I found a lot of questions in community about that, but no response.
In case of using “Photo → Edit In → Topaz Photo AI” the resulted TIFF is processed correctly.
Dell Precision 7780, Windows 11 Pro 64bit v.23H2 (22631.3737), LrC v.13.5.1