I have a weird problem that recently started (still need to figure out exactly when) in a project using Kotlin 1.2.20 / 1.2.21, Gradle 4.4.1 / 4.5, and kotlintest 2.0.7. For some reason, IntelliJ does not hit breakpoints anymore, but only on Windows: All breakpoints say “Breakpoint does not belong to any class”. The exact same project still works on Linux. I already tried several times to re-import the Gradle project from scratch, but still no go.
Has anyone else seen something like this?