Is the Green tick for solved questions a bug?

Many times on the individual question page a green tick appears near the submit tab even though I never attempted it. Is it a bug?

Yes I see them too!!

I even doubt what it is…

Yes, I have seen this quite a many times during the long challenges to be specific!

Don’t quite understand why it shows on questions that i have not even read.

Perhaps, @admin can throw some light into the context. :slight_smile: