Lines so close together, evap?!

So I took this test and at 1 minute it didnt have a second line so I walked away and came back at the 10 minute mark and saw a bold line and a faint line so close together.

I'm guessing a fault test but had anyone else had experience with this? If so what was the outcome?

I know the faint line is on the wrong side, I just want to know if you've had experience with this