I am trying to rename a function address in IDA (free) and it says that the name I picked already exists in the database (Error Code: 8727B0) ... but the provided name does not show in the functions window (filtered to check) or the names window (Shift+F4). The name is valid it's just "my_func" without quotes.
Is this normal behavior to say a name exists but does not? Is there a way to manually edit the IDA database file(s) to fix this issue. It should not be reporting invalid errors.