With multiple panes open, and having the same file open in multiple panes, there is still just one history stored, which is always applied to the first (left most) pane. So, when jumping in another pane (say the right one) and then pressing the shortcut to go back to the previous location the cursor jumps back to the old line I was on in the right pane, but does so in the left pane. The cursor in the right pane is left unchanged.
This is not only confusing when describing it, in reality it is even more... ;-)
With multiple panes open, and having the same file open in multiple panes, there is still just one history stored, which is always applied to the first (left most) pane. So, when jumping in another pane (say the right one) and then pressing the shortcut to go back to the previous location the cursor jumps back to the old line I was on in the right pane, but does so in the left pane. The cursor in the right pane is left unchanged. This is not only confusing when describing it, in reality it is even more... ;-)