My Kotlin multiplatform library does not work with build variants which are using proguard. There is no compile time error but library functions just don't work at runtime. For variants which are not using proguard, the library is working fine. Anyone else faced something similar or have a solution to this issue?

have you added the proguard file and it is found?

I have proguard file in my android app not in the library

there is no systemic issue with kotlin and proguard/R8. it works fine for us. Any issue you're having is likely specific to your use cases.