If a transactional (exactly-onece) consumer fails with an error like this:

SRMSG18204: A message sent to channel `channel-name` has been nacked, ignored failure is: Transaction offset commit failed due to consumer group metadata mismatch: Specified group generation id is not valid.

It doesn't recover on its own and the application needs to be restarted. Once the error occurs, it throws logs like these indefinitely:

 SRMSG18204: A message sent to channel `channel-name` has been nacked, ignored failure is: Cannot execute transactional method because we are in an error state.