almost all my towers have these hair on the sides. Last one looked like a christmas tree. I thought its supposed to happen, given that the new prime tower is also a nozzle cleaner, but when you consider that every “floor” had a string of 0.5 to 1 cm long, im pretty sure this is not supposed to happen.
I did NOT have any tower fall down yet though, but that might just be me and my print prep for the best adhession possible. So might be luck for me that it didnt get knocked out yet.