Daniel -
Cannot find any other logs that might help.
This is a long shot, but try the following to see if you are getting this error because of stale data cached by the CABI and possibly the UMP wasp probes or your browser:
1. Deactivate the wasp probe on the CABI robot
2. Deactivate the wasp probe on your UMP robot
3. Delete the <installPath>\Nimsoft\probes\service\wasp\work directory and its contents on both the UMP and CABI robots. These are temporary directories that the wasp uses to cache information. They will be recreated and repopulated when you activate the wasp probes on these robots.
4. Activate the wasp probe on the UMP robot
5. Activate the wasp probe on the CABI robot
6. Before logging into the UMP portal again, clear your browser cache from the beginning of time
This may not resolve the issue, but will definitely rule out a problem caused by stale data cached by the UMP and/or CABI wasp probes.