This sounds more like a problem with UTeam configuration than it does with any actual bugs in (latest SVN, there were problems as previous posts indicate) ULX or ULib
Make sure you realize that UTeam is not included in ULX.
The configuration for it is now included in groups.txt
And as always, we can't guarantee it will work with non-Sandbox game modes.
Your version of whatever RP you're using may have it's own team based system it uses for 'jobs' that might conflict with UTeam,