If I create a Gradle build script for an multiplatform Kotlin project (with no source, just the project structure) and import it into IntelliJ, IntelliJ thinks that the packages in the Kotlin source directories are Python packages, and the New popup smenu on common source directories only offer the option to create new Python packages, not Kotlin packages. Is this a known bug? I’m using the latest IntelliJ and Kotlin plugin. I also have the Python plugin installed.

I don't think it's a known bug. If you report it, please link it back here