A report is already open on Chlorine's issue tracker, but I figured I should let you know, too. The game crashes on startup when Chlorine is present, citing mixin apply errors involving abnormals core.

Logs:
latest.log

Closing since 1.16.5 is no longer supported, and Chlorine isn't updating anymore.

Does this issue occur only with Abnormals Core and Chlorine installed?

I have verified that it does occur when only Abnormals Core and Chlorine are installed

Can confirm this. I am weighing between having abnormals mods or chlorine atm for better client side performance.

From my understanding, this is an issue Chlorine must fix on their side.
Chlorine overwrites a method we inject into.

I tried to compile this version with "gradlew build" but "Task: addRefMapToDeobfJar FAILED". I attached the --stacktrace output.
stacktrace.txt