Anyone experiencing issues with BuildConfig.FLAVOR parameter? After Android Studio 3.6 update all of my BuildConfig usages in code were red (as if the import was removed) and I can't override it from app config, only from Crashlytics and other sources. It has critical functionality in my app to load the right URL for API calls based on different flavors.
I used Build -> Clean Project and then File -> Invalidate Caches / Restart. It was still red after rebuilding, but as I build my App on smartphone it suddenly worked and red color disappeared.