u/Kittyinabath

So im making a bedrock realm for me an my buddys with a custom map made by me. and animals aren't spawning. Ive been using bedrock to play test it (using Chunker to convert it) and didnt find the results I wanted but then when it was tested on Java it worked wonderfully. I tried Chunker (as said before). Ive used UMT (Universal Minecraft Tool) and it still hasn't worked. Is there a setting im missing in the export menu, or Another conversion application I could use. Or is there just no way to get animals to start spawning in bedrock?