Problem:  When attempting to remove contacts from an incident, they cannot be removed, even though the admin@logicbase.com account  is associated with the groups that have permissions to remove them.

Cause:  Rights and permissions to change contacts have not been extended to groups.  This is a known issue

Workaround.  At this point, the only known workaround is to explicitly grant full incident edit permissions to a specific user.  This will allow him to edit contacts for that incident only.  This will only allow that user to edit contacts for this incident only.