I don’t know nothing, but this happends with 6379 and it is normal.
1226:M 31 Aug 2024 20:12:31.886 # Warning: Could not create server TCP listening socket *:6379: bind: Address already in use
1226:M 31 Aug 2024 20:12:31.886 # Failed listening on port 6379 (TCP), aborting.