I was able to download custom maps off the discord on my S9+ that I had for a good number of years. I recall using 12×14 and around there just fine. Got a new S21FE and now even a 10×10 map crashes the app to my homescreen. One map completely making me unable to open Worldbox at all. Had to uninstalle and re-download to now try the 10×10 map and still having the same issues. With the biome update you ruined big land masses being generated by new worlds. My go to was the discord but now I can't.