I noticed this is now happening with all photos I modify or export to that drive, all dates will be switched to whenever I modified (in the HoudahGeo GPX app) them rather than their actual creation dates.
When I copied it to my desktop, the creation date didn't change. So I'm at a loss now on what's going on or what to do. I'm not sure if this is isolated to Samba or the exFAT formatting of my WD Blue drive.