All controls will disappear

If i Go Large Amount Of Chunks In A Server My Controls Will disappear And Its Rlly Annoying Because I cant grind blazes because  this Bug will happen and i rlly hate it Because Of This It Happens On Some Server Like BrokenLens alot of players are In Trouble Because of this Bug And im playing on a faction server i placed alot of spawners and when i look up My Mcpe Screen Will disappear including chat button Arrow Button and Hud And The Sneak button