MySQL Error Message
The replication positions relative to the source may be
out-of-date on channel ‘%s’, due to the use of GTID_ONLY=1. The
out-of-date positions can still be used in some cases so, in order
to update them, we suggest that you start the replication to
receive and apply at least one transaction, which will set the
positions to valid values.
Reason for the Error
ER_WARN_L_DISABLE_GTID_ONLY_WITH_SOURCE_AUTO_POS_INVALID_POS
was added in 8.0.27.