Yes - long ago I added Priority as a Group tag and forgot about that in this database. (I intended for this database to be used for accessing DT with Vision Pro but then realized that is not necessary since I always mirror my MacBook to the Vision Pro. Now I ressurected that database for transferring to DTTG 4 on ioS.)
The reason I was not seeing that tag in the individual items is that I had checked “Exclude Groups from Tagging.” So on the Mac those tags were ignored.
** Apparently DTTG 4 did not follow the preference to exclude groups from tagging - that caused the discrepancy between the two.
I changed it now to allow group tagging (which is what I prefer) and it works fine for me.
This may be a bug in DTTG 4 however for those who wish to exclude groups from tagging.