Tree generated only about half of itself.

We are unable to diagnose your issue due to the lack of proper debug information. Please review the guidelines before reporting issues.
In case of a game crash, please also attach the crash log from [minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/finding-minecraft-data-folder].

-- I am a bot. This action was performed automagically!

Could be related: https://bugs.mojang.com/browse/MC-125007

Morpheus that might just be the problem.