[1.10.2] Teleporting entities inter dimensional

Hi,

I'm trying to move entities from one dimension to another.

The task sounds quite simple. The parameters should look like this:

void teleport(Entity entity, int dimension, BlockPos pos)

code:

             
                        Teleporter tele = new PortalTeleporter((WorldServer) target.getWorld(worldObj), tar.selfLanding);
		if (entity instanceof EntityPlayerMP) {
			worldObj.getMinecraftServer().getPlayerList().transferPlayerToDimension((EntityPlayerMP) entity, target.getDimension(), tele);
		} else {
			worldObj.getMinecraftServer().getPlayerList().transferEntityToWorld(entity, entity.worldObj.provider.getDimension(), (WorldServer) entity.worldObj, (WorldServer) target.getWorld(worldObj), tele);
		}

public class PortalTeleporter extends Teleporter {

BlockPos pos;
WorldServer world;

public PortalTeleporter(WorldServer worldIn, BlockPos pos) {
	super(worldIn);
	this.world = worldIn;
	this.pos = pos;
}

@Override
public void placeInPortal(Entity entityIn, float rotationYaw) {
	this.world.getBlockState(pos);
	entityIn.setPosition(pos.getX() + .5, pos.getY() + .05, pos.getZ() + .5);
}

}

It works fine for players but other entities are not working correctly. Sometimes they vanish or duplicate.

Some warnings in the logs:

[01:56:31] [server thread/WARN]: Wrong location! (12, 10) should be (5, 0), EntityItem['item.item.fireball'/3960, l='New World', x=194,51, y=64,00, z=174,04]
[01:56:31] [server thread/WARN]: Tried to add entity Item but it was marked as removed already
[01:56:31] [server thread/WARN]: Keeping entity Item that already exists with UUID d27bbf73-764b-4f91-9877-c6679b958684

Is there a better solution for teleporting non-player entities (e.g. mobs,animals,items)?

thx