i have no idea how to approch this discovery but if you use the seed:74471000 then traviel to around the corroadance 3,070 ~ 1853 you will come across a mushroom island with an icebearg in the middle of it. My problem is that mushroom island is hostile mob safe but with this little hostile mobs are spawing around the iceburg in the same as the mushroom island.

pleaase explan how this works or try to wright the lceburg grenerate after the mushroom island