Has anyone had troubles with ProGuard after adding Coroutines? After adding the Coroutines dependency I am getting this ProGuard error message when building:

Shrinking...

Removing unused program classes and class elements...
  Original number of program classes: 9596
  Final number of program classes:    9596

Obfuscating...

Printing mapping to [/Users/jenkins/Public/workspace/Android-App_ck_ANDROID-313/app/build/outputs/mapping/playStore/release/mapping.txt]...

Warning: Exception while processing task java.io.IOException: java.util.EmptyStackException
Thread(Tasks limiter_1): destruction

> Task :app:transformClassesAndResourcesWithProguardForPlayStoreRelease FAILED
FAILURE: Build failed with an exception.

I personally use R8

For anyone experiencing the same: I was using the ProGuard version 6.1.0beta2, switching back to 6.0.3 fixed this