I remember that happening to me too. Small glitch that doesn't happen on the real one. One thing I will tell you is that portion of the ATSA is harder than ATC prep on its hardest setting. Not impossible but faster and harder math problems.On the collision and math portion of the ATCPrep application I encounter situations where there are no collisions and all dots fly off screen safely but it will report that I missed one. This happens even when the dots would not conceivably run into each other off screen.
Am I missing something or is this normal/does anyone else run into this issue?