There was a slight discrepancy between the position of the stars and the grid which could be noticed with high zoom levels.
Jupiter's moons were drawn "updside down" with the default orientation, instead of what is seen with binoculars.
There were problems with the hardware buttons of the T5.
Many dialogs had this on the T3: In landscape mode with the T3 case open, open a dialog, close and open case, then the dialog was not redrawn properly.
When one has snoozed an alarm, the crosshair was flashing very rapidly afterwards. This might also have happened at other occasions.