https://youtu.be/VuMUHubiqT4 <- vido showing the bug
After you enter the nether Elite skeletons will start spawning mid-air, sometimes leading to their deaths

Seams like i was using 0.2
Im sorry, i generally check if i'm using the latest version or not before reporting a mod's issue, i will update it

Which version of the mod you are currently using? Because in the latest update 0.2.2 it should be fixed.

There is no problem :)