Seems like a bug, you could try reloading the map, and/or the editor. Sometimes it fixes visual issues, cameras, and a bunch of other stuff that may bug after some use. You could still try to select the arrows, if they are for whatever reason simply hidden but selectable. You could drag click and press Alt left click which will relocate the point. Note that you can rotate the arrows using Ctrl left click.
Seems like a bug, you could try reloading the map, and/or the editor. Sometimes it fixes visual issues, cameras, and a bunch of other stuff that may bug after some use. You could still try to select the arrows, if they are for whatever reason simply hidden but selectable. You could drag click and press Alt left click which will relocate the point. Note that you can rotate the arrows using Ctrl left click.
Working on projects: