OS X 10.11.5
FileMaker Pro Advanced 15.0.1
The Inspector panels have a slight L/R scroll in them. On occasion the scroll gets stuck in the "far right" position, clipping the open/close triangles on the left.
Only option has been to quit FM and start it again. This happens with all panes except Styles.
Is there any reason why something that is a fixed width should have any horizontal scroll at all?