[Forge 1.16.5][ConcurrentModificationException] CME generating a new chunk from TemplateManager

[Viola-Siemens]

I enjoy playing Minecraft with Quark. It brings so many improvements to various aspects of my game experience. And also I'm running a channel about finding solutions to resolve Minecraft game crashing.
Today I received this crash information, and by using this mod, I found there's a concurrent modification problem occurs to Quark. According to CMESuckMyDuck.log that records the modification history, it seems that in Worker-Main-13 thread (where Quark is generating BigDungeon) and Server thread (where Minecraft is generating Igloo) concurrently modified map TemplateManager#structureRepository, which causes the crash.
Minecraft version: 1.16.5.
Quark version: r2.4-322 (the latest).
Full crash info:
minecraft-exported-crash-info-2024-12-17T17-54-09.zip