This just started happening to me since the SU5 Hot fix update.. Downloaded the 1.06 update tonight for the CRJ and problem is still there.. Strange thing friend of mine I was flying with last week entered the same flight plan and his worked no issues. So I think this is more than just a SID/STAR data issue. As it's doing at now at every airport and every route I try to enter. Flight plans that work before SU5 hot fix now don't work since that update.