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There were no faults that caused more than 2 hours downtime during period 45, but there was one more persistent problem that caused overall the most downtime in the semester so I discuss it here.
On separate occasions one of the filter wheels in FASU (Filter And Shutter Unit) mounted above ALFOSC moved though it was not commanded to do so. The problem occurred on a few occasions (in fact probably also in the previous semester) but it could not be reproduced. It was noted that apart from specific commands, the only way that the FASU filter wheel can be moved is by pressing buttons that are mounted on the unit itself. After the last occurrence the buttons on both filter wheels in FASU have been replaced but it remains to be seen if this solved the problem.