I appear to have a problem with a corrupt(?) label in Google Contacts that is assigned to many contacts. Everything was OK when last edited my contacts about a week ago (when I specifically edited a bunch of contacts with this label).
I'm unable to edit any contact that has this label. I get the error "Problem with updating contact". None of the reasons given in the "learn more" link to the help docs applies to my situation (regarding "limits").
UPDATE: I can seemingly edit the contact on Android/phone and get no error. However, it doesn't seem to be sync'd, unlike edits to other contacts without this label. The edit does seem to remain on the phone.
I seem to be able to edit any other contact that does not have this one label.
I can remove this label from the contact. Then successfully edit and save the contact. But if I then try to add the label back again I get the error: "Can't edit labels" and the label is not added (no "learn more" link and I can't find much about this particular error).
If I try to rename the label I also get the error: "Can't edit labels" and the label is not renamed. (I can rename other labels OK.)
Are there any fixes for this without having to remove and recreate a new label?