It looks like its searching the LDAP for a user/group, but the response is timing out. The odd thing is it shows 'timeout used:-1ms', which should mean an unlimited timeout.
You could try turning on the wt.org debug logger, which will log information about the LDAP request. You could check that to see if there are any problems with the LDAP query that Windchill is using. To turn on the wt.org debug logger, just run the below from a Windchill shell:
windchill wt.util.jmx.SetLogLevel -ms wt.org debug
After recreating the error, run the below to disable it:
windchill wt.util.jmx.SetLogLevel -ms wt.org error
