In the hivemind floor there is a corridor with a large cube in the center of it.  If the world generates this cube in the exact place where the walls of the corridor slightly bend inwards, it makes it impossible to go around the cube.  You cannot shove, be damaged or ult yourself to propel past it.  Unless you have another path that leads to the other side, it is impossible.  Unfortunately for me, I did not have another way around, and the reactor floor was on the other side, which caused me to lose the best run I have ever had.  RIP, please remove this cube from generating in this room entirely, or make the corridor larger, either way it definitely needs to be altered... Made me waste 2 hours just to come up short.