Photo date is changed when adding to Shared Album
I created a Shared Album with about 100 photos, dating back to 1983. I had them in their own album, in date order, then did select all and added to a shared album. One photo from 1987 had it's date changed to the date of moving the photos into the shared album and it now appears as the last photo in the album.
I deleted all of the photos, then went back and added them one at a time (thanks for the extra available time Covid!)...same thing, date changed to date of transaction!
I know shared albums will display the photos in the order added; but what could be happening with this particular photo?
iMac 27″, macOS 10.15