Hi

I play a map called OneBlock in solo player mode.

• keep allways 1-2 chunks near start block at 0,0,65
• build plattform at height ~37 to use a slime chunk
• have a small tower with cursed earth as mob farm
• when i press a button, lights go off and mobs appear
  ...
  But after some playtime
• journeymap shows them at 0,0 under my plattform
• i could kill them with bow and arrow through a hole
• they seam to stand in air
• after reload of map they disappear and new mobs spawn
  again in my farm

:concern: I will look at it after updating to 1.16

should be fixd