Extended logs for x - H(authType), x - H(remoteUser), x - S(XXX), x - P(XXX), x - A(XXX) in case of empty or missing value contain "" instead " - " which based on rest of extended logs which in this case contain " - " is bug.
In case of combined logs with expected pattern "<log> <log> <log>" is " - <log> - " readable and easier to detect, which logs are missing than "<log>"

NOTE: x - H(authType), x - H(remoteUser) - in case authentication/remote user is set, it works fine and log file contains expected values. So problem is just in case, authentication/remote user is not set.