So binding as uid=edirt22222,ou=Int,ou=people,dc=example,dc=omm from Apache Studio, we see an error: (From Apache Studio)
The authentication failed
Error while opening connection - [LDAP: error code 49 - NDS error: failed authentication (-669)]
Yet we observe no event in XDAS when the entry binding with is not found.
Guessing that on a bind, if the entry is NOT found, then there is no call to NMAS which means we do not get to see the bind result FAILURE event.