Source code doesn't get highlighted when using Jacoco in Android Studio 4.2

Hi, I am trying to enable Jacoco to get coverage for our unit tests, I am able to get the numbers. but I can’t drill down to the source code to see which branches we’ve missed.

any idea what I am missing?

all I did so far was adding apply plugin: 'jacoco' to my build.gradle file. and I generate the report using ./gradlew createDebugCoverageReport