Like we have the current issue of not being able to plant on Trainyard’s 1st Objective.
I believe its something to do with Bushwackers setting up sentry on the Objective itself. I was in a game where I kept planting and they defused. So I was able to plant in that game. A enemy had set up a sentry in the obejective itself. Once I killed it and tried to plant I couldn’t. All this happened in the same game.