Mobs spawning stronger feature doesn't work very well.

[xelotex]

If you exit a world and re-enter the same world, mobs won't have the buffed stats anymore, but rather the vanilla stats.

Everything fine:

But when i re-enter the world, the extra stats are gone and the mob has vanilla stats:

[Chooksta]

Yeah I'm currently trying to find a solution for this as well. I've had to reset the values multiple times now due to them going back to their default values.