Steps to Reproduce:
1) Summon Ghast
2) Push through Nether Portal
3) Follow through same portal.
Also works if you have one player in the nether, and one in the overworld waiting.
Behavior:
Ghasts pushed through portal appear on other side for a fraction of a second before vanishing.
Occasionally where they vanished, blocks cannot be placed. Restarting the server resolves this block placement issue,
Is this still an issue in the most recent versions (currently that is 1.10.2, or 16w42a) of Minecraft? If so, please update the affected versions and help us keeping this ticket updated from time to time.