I was flying as ivy, back to my base. had a long stutter/lag spike and apparently flew directly into the tubes connected to the zip lines. It turns out if you fly far back enough. The tubes open up into a dark area outside the map. The only way back in is to wait to fly again and line up and enter the tube, and fly back out. While inside you can see through the walls. It cost us our game because our base was being pushed. and we lost a huge deal of wave clear with ivy.