In older versions of AS, the position of the compass in the model directly related to the compass symbol position in the drawing.
This was good as you could position it exactly where you wanted.
Now for several versions, the compass symbol can only be positioned in one of the 4 corners of the drawing view.
...and if you move it, it gets moved back again on update.
Please either revert to the original functionality where the model position of the compass governs the position on drawings, OR keep any new position the user has moved the symbol to when updating the drawing.