NOTICE: Bukkit/Spigot versions 1.7.10 to 1.12.2 are considered as legacy and receive no support. Please consider upgrading to 1.15.2 or higher versions for future support. Plugins exist that bring back old behaviors found in 1.8

Bug report for FastAsyncWorldEdit < 1.12.2

Debug paste link:

Description of the problem:

How to replicate:

Checklist:

[] I read the information at the top of the issue stating that versions up to 1.12.2 are classified as legacy and receive no support. Given that, I understand that my issue won't receive an answer or fix anytime soon since my version is very old and I should update my server to a version past 1.14.4 of minecraft.
[] I made sure that I'm using FAWE on 1.12.2 or lower
[] I included a /fawe debugpaste link
[] I made sure there aren't duplicates of this report (Use Search)
[] I made sure I am using an up-to-date version of FAWE < 1.12.2
[] I made sure the bug/error is not caused by any other plugin