coordinate clue : 02 degrees 43 minutes south, 33 degrees 26 minutes east - located southeast of uzer. has no quest requirements but the script detects it as unsolvable and drops the clue.
Also happens with another coordinate clue (22 degrees 30 minutes north, 03 degrees 01 minutes east) - to Miscellania. This one requires frem trials, so maybe it fails to recognise that the quest is completed?