So, the INGROUP doesn't work?! Have you tried putting the domain name in front of the group name and did you refresh the token cache ?
What's the result of this:
code:
IF InGroup('PRT-1-5-HP8000')
  ? 'InGroup works'
ELSE
  ? 'InGroup Failed'
ENDIF
Do all groups fail?
Also can you get a list of groupnames with ENUMGROUP? See the KiXtart Manual for an example.
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There are two types of vessels, submarines and targets.