Thanks, the CTRL-A and Delete or re-typing a new character fixed the blank tags for me as well.
Agreed that 26 letters and 0 - 9 provides for a lot of tagging. Just making the point that with a single character its harder to remember what each tag is meant to represent.
I’m at 75 total planes on a single page. I have now tagged the planes I fly most with an “F” (favorite) and can sort them to the top using the Tag column so that makes me happy 