I just noticed there was a new coroutines 1.6.3-native-mt, and so tried updating my KMP module to it, but when building macosX64, I get the following error:

Compilation failed: Internal compiler error: no implementation found for FUN DEFAULT_PROPERTY_ACCESSOR name:<get-thread> visibility:internal modality:ABSTRACT <> ($this:kotlinx.coroutines.CloseableCoroutineDispatcher) returnType:kotlinx.coroutines.Thread
when building vtable for CLASS CLASS name:MultiWorkerDispatcher modality:FINAL visibility:private superTypes:[kotlinx.coroutines.CloseableCoroutineDispatcher]
at /Users/administrator/Documents/agent/work/8d547b974a7be21f/ktor-utils/posix/src/io/ktor/util/CoroutineUtils.kt (0:0)
CLASS CLASS name:MultiWorkerDispatcher modality:FINAL visibility:private superTypes:[kotlinx.coroutines.CloseableCoroutineDispatcher]

 * Source files: 
 * Compiler version info: Konan: 1.6.21 / Kotlin: 1.6.21
 * Output kind: FRAMEWORK

The 1.6.1-native-mt works fine for me. Perhaps this version removed some platforms?

If anyone have the same problem, for us the problem was using ktor with coroutines that caus this error. Updating ktor to 2.1.3 resolve this issue