When I create a map marker which is a non-trivial distance away from the Vortex (e.g. in grid -10|A or 5|A), and then click on the marker on the right hand side of the screen to jump to it, I lose the ability to scroll the map around by using the WASD keys or left-clicking and dragging the map. I can still zoom in and out by using the mouse wheel, and pan the view by middle-clicking and moving the mouse, but I can't pan up/down/left/right.
If I press H or use the on-screen button to return to the Vortex, I get control of the map back. Similarly if I alt-tab out of the game and then return to it, I get control of the map back.
Expected behaviour is that using a map marker doesn't prevent you from then manually scrolling around the map - otherwise it kinda defeats the point.