Cannot submit exercise even though all tests pass

All my tests pass but the Submit button is still disabled and I cannot submit. What am I missing?

Is there any automated feedback that it wants you to address?

I have a vague recollection that the Kotlin test runner isn’t working well. Unfortunately Erik won’t be back for a couple of days to investigate further (I'm off for a few days)

@dturner Could you post the source code you were using?

From the screenshot, this is definitely a bug in the test runner itself. @dturner If you share the code, we’ll investigate :slight_smile: