This is somehow related to Kotlin update 1.3.50 -> 1.3.60 because I get this also using 1.3.60 and Detekt 1.0.1

Do you mean kotlin 1.3.60 and detekt 1.0.1?

Yes, fixed 🙂

Could you open an issue for this? It seems like a new issue with the new version of kotlin

done https://github.com/arturbosch/detekt/issues/2130