Thanks @Nick_J - good suggestion. When I run mysqlcheck my_mautic_database, the result is OK for every table. Should I dig deeper?
@joeyk referred to this here. When I post code/error message here I usually replace actual usernames, server paths, my own custom prefix, etc. with something like that.
Since the database is OK according to mysqlcheck, I am going to try update to 4.4.3 first to see if that fixes database errors I see elsewhere. Edit: It didn’t.