In Nuendo 12.0.30 on macOS 11.6, I select the comp tool (by a shortcut key I assigned myself), and after under a second the mouse cursor changes back to normal object selection (arrow) cursor. I am still in comp tool mode, but have no way of telling (except by looking at the toolbar in the upper zone). Is this a known issue?
EDIT: This actually happens to all my tool cursors now - range selection, eraser, mute tool, warp tool… They change for half a second, then instantly change back to the regular arrow cursor.