This one was slightly funny.
So, started a new game.
Went to select some units, clicked the "Move units" button.
Then the screen jumped far to the right and all I can see is this screen. Note that you can see a tiny bit of the map on the left.
Can't click anywhere on this screen, but I can move back to map by clicking mini map, using keyboard or dragging from that little visible part of map.
I then repeat by clicking on the Unit portrait instead of the "Move units" button. This does the same thing but my inf are selected. They want to move to left, 9 oclock , but only at full move range. Can't move due to ocean near Finland.
I then build some destroyers and try again. They can move as there is ocean. Movement is stuck between 9 and 7 oclock and at full. As you can see they move on land. I even move them again down into Europe and some more into Sweden, they can't take cities however.
Refreshing doesn't fix but closing browser and restarting does.