Features such as trees aren't appearing in the far-plane of Cubic World Gen worlds when using its rough generator - doesn't happen in vanilla worlds, which leads me to believe that it's related to the CWG rough generator.

Specs (unlikely to help, but still):
OS: Windows 10 Home
GPU: Intel UHD Graphics 620 (using as a substitute for AMD Radeon R7 M440, the classic Intel GPU far plane flickering only happens when looking down/up or when the far-plane is getting generated, so that didn't stop me from noticing this issue)
CPU: Intel i7-8565U
RAM: 8 GB (2 GB allocated for Minecraft)

this isn't even a bug, it's just an unimplemented feature. i still have way too many driver and OS compatibility issues to work out to spend more time working on adding features to the rough generator.

also on a somewhat related note, i still have yet to come up with some brilliant idea for how to efficiently generate trees at low-resolution :P