I have a story of FMS GW being wrong because of FMS fuel value, all other indications being what they should be. Seeing FOB remaining 2,3 on one side, and 1,4 in the opposite box makes you think of
this akward thing quite intensively. Does not match the description above though.
Another obscure issue are wrong SAT readings. That releases great many goblins out of the FMS caverns!
