when playing a scenario, move to a map corner (using arrow keys)
set a bookmark using hotkey Ctrl+F1
use hotkey Home or End to rotate the map
press hotkey F1
It does not go back to the bookmarked point in the global map.
It saves and restores the camera position (like in the mini-map), without handling the map orientation.
Interesting one. I'm guessing the original C3 also has the same issue. The bookmark stored the view coordinates without taking orientation into account.
Steps to produce the bug: