Can not finish a challenge

I got one of the strangest bug EVAR!

I’ve play (again) the challenge postet in the tournament with a big tribe fleet with a LOT of MWM (by 123stw).
And SURPRISE! the challenge start but not how it must normal do:
On the upper right corner, it was not the “fleet %” of the enemy fleet, but the “total destruction” of survival map XD
And, after destroying the WHOLE tribe fleet, I didn’t get the victory message.

It’s the first time I got that!
I just try the challenge again without getting the bug.