Trouble with regions renaming themselves

I started to name each region for the chord type in it. However, for some reason, Logic is changing the region name. For example, notice the first CHORDS track. All the Bb m add regions are add 9, 18, 20, 21, 23, etc. The region labeled Bb m add 23 is (according to Logic) an Eb 9 Sus 4 which I had previously labeled as such but Logic renamed it to its current name. The same holds true for the lower CHORDS track.

Anyone know what’s happening and how I can prevent Logic from renaming my regions?