During missions I've come across several buildings that are not loading in and staying completely invisible throughout the entire mission. (Just to add this is not me mistaking the building not being there due to the transparent wall setting available in game, the buildings are literally invisible as they still have collision) Sometimes these can be missions critical buildings E.G. one of the very first introduction missions you have to free some captive soldiers from cages, multiple times I came across those cages being completely invisible. In turn causing them to be un-interactable stopping me from progressing and forcing me to restart the mission.

I also came across several invisible loot boxes that still appeared on the map and had collision when walked upon, but unable to loot due to the box being invisible. Many turrets that are usually usable by the player were invisible and unable to use.