The bug is regarding the latest version of Better End, and BYG. A crash log is attached as well. But essentially, upon entering the end, everything runs smoothly, and seems fine until you start generating the outer islands. The game crashed when trying to generate the outer islands with caves enabled. The crash seemed to only happen once BYG/BOP was installed. Only those 3 mods were installed during the crash. It still crashed with Outer End installed as well. I'm not sure if there are compatibility issues with all of those, or just BYG.

On top of the crash, the following biomes from Better End seem to be completely missing only once BYG was installed:
Dragon Graveyards
Dry Shrublands
Glowing Grasslands
Lantern Woods
Neon Oasis

Through the /locatebiome command, and teleporting several times to vast distances (probably spent 1 to 2 hours searching using both teleportation, and /locatebiome), none of the above biomes seemed to spawn once BYG was added. But Better End when installed on its own (without BYG, BOP, or Outer End) did yield all biomes. So it definitely seems to be a compatibility issue. Likely with BYG, but it may be worth checking compatibility with Outer End, and BOP as well.

Other than that, with BYG, BOP installed together with Better End, the other biomes from Better End that are not listed above, do all spawn. Disabling cave generation does stop the crash as well (which allowed me to attempt my search for all Better End biomes).

Hopefully these are fixable bugs for Better End Forge! I'd love to continue using the new features from BYG, BOP, Outer End, and Better End together!

Here is the crash report! The only mods installed at the time of the crash was:
The latest version of BOP,
The latest version of BYG,
& The latest version of Better End

Thank you for creating such an awesome mod, and I hope this information helps to fix the following bug!

crash-2021-05-14_22.29.07-server.txt