Pasting in schematic sometimes crashes

[renderXR]

Describe the bug
Server crashing when using fx br v macro schem{} at rare times.

To Reproduce
Steps to reproduce the behavior:

1. Create schematics according to command below
2. paste schematics 100+ times with the following command: /fx br v macro schem{crimson_small_root_1|crimson_small_root_2|crimson_small_root_3|crimson_small_root_4;c;1;c;false}
3. this mostly goes fine, but 1 in 100+ crashes and fills the log with red text of doom. The server will also then hang up on saving the world (which does seem to happen correctly if the megaserver is just closed manually and restarted)
4. See error in attachment

Expected behavior
I would expect it to not crash... lol

Attempted Workarounds (please note if any workarounds were successful
n/a

Screenshots
n/a

System (please complete the following information):

• Spigot Version: [e.g. 1.14.2]
• Java Version: 17
• Using Megaserver or Release Version: Megaserver

Additional context
n/a
2022-02-16-1.log.gz

[Logan Cooper]

Cannot currently reproduce with 14erEdit, WorldEdit, and VoxelSniper installed on a server. Attempted pasting 10,000 copies of the schematics using the provided command.