Chess.com Tactics learning Glitch

For some reason, when i got this puzzle wrong, i looked at the target time and it said: NaN:an

Chess.com Staff, can you please solve this glitch?

Is it even a glitch?

And if you have a solution to the glitch please comment down below.

Thanks

maybe chess.com staff is a troll and it's trying to say"NANANANA NANANANA HEY HEEEYYYYYY GOOOODBYEEEEEEEEE" because you got it wrong.

How did I get it wrong?

 Qxf7+

I don’t know the solution but Qd8 is wrong, Qxf7+ is coming

Yes but what about the "NaN:an" target time thing?

I don’t know

I will contact staff.

Will you ask the solution?

I will report bug

...rook e1. Kh2 then exchange the queens and go for the c pawn?

I am talking about the target time in the picture

Re1 I think but then I don’t know, maybe Qxf2. Not exchanging

I am talking about the Target Time. You see>?

Yes but I’m so angry to see a wrong solution!

Why?

I don’t know, maybe I want to show my chess.

Yes but that is not the point. The point is where the target time says 'NaN:an'. Normally it would be just like 0:46 or something

But there is 0:46

Here it says for me: Target Time"NaN:an" which is the glitch.