Bug in C# course (Prefix & Postfix)

Question

Hi everyone,
I just began the course and I'm stuck at the "prefix and postfix" section. No matter which answer I give, all of them indicates "Wrong answer", even the one that's highlighted in green. I can't continue the course because of this. Any idea what might be the cause ?

Answer 1

I tried this quiz and passed it.
If you're unable to complete a quiz, you can go back to lesson or check the comments at the bottom.
People explain it clearly

Answer 2

Hi VBakem,
Your question is related to SoloLearn, so it would be better if you tagged SoloLearn also.

What was the quiz and the available options again?

Try to clear app/browser cache, and restart the app/browser. If that didn't help, you might wanna contact the developers by e-mail [e-mail]. They know how to handle this stuffs better than any of us (users) here.