I am encountering an interesting issue with the project on the fly warning showing up in ArcPro editing group even though the layers are projected to the same spatial reference.
I have tracked it down to the difference between NAD 1983 UTM Zone 11N and NAD_1983_UTM_Zone_11N (spaces vs underscores in the name of the projected spatial reference).
The map uses the version with spaces and all layers using THAT version do not show the warning, all layers using the underscore version do.
There isn't actually any difference between the two projections is there?
