Automatic rejoin failed

[mariadbmon] Automatic rejoin was not attempted on server 'server1' even though it is a valid candidate. Will keep retrying with this message suppressed for all servers. Errors:
gtid_current_pos of 'server1' (0-1-19) is incompatible with gtid_binlog_pos of 'server2' (0-2-6).

Master DB (10.6) replication config:
server-id=1
gtid_strict_mode=1
log-slave-updates=ON
log-bin = /var/lib/mysql/bin-mariadb.log
expire-logs-days=8
sync_binlog = 1
slave_compressed_protocol
transaction-isolation = READ-COMMITTED
binlog_format = row

Maxscale (6-1-1-GA) config:
monitor_interval=100
auto_failover=true
auto_rejoin=true
enforce_read_only_slaves=1
backend_connect_timeout=2
backend_read_timeout=2
backend_write_timeout=2
master_failure_timeout=2
verify_master_failure=true
failcount=2
switchover_timeout=20
failover_timeout=20