For example at the docks in La Rochelle, when accessing a crane's upper deck via the upper ladder, the player usually falls down to the floor because there is not enough space at the top platform. As a result, the player either dies or is severely injured. The reason is probably that there is not enough space for the player figure to stand, i.e., the door frame is too small thus blocking the player. The following picture shows the problematic spot:
game version: 1.63.136817