just try world, New World and World
i have tried with the 1.8pre-release (so before 1.8 and 1.8.1) and there was not any problem.
i have tested 20 times because i wanted to make a deep ocean customized world but there is always this problem.
make deep ocean world (without water to see the bug) and that's it.
confirmed for 1.8-pre3
the bug was resolved to take mipmap level to 0 🙂
Thanks
Yes it is normal
resolved by what pls ?