Advnced digital ovulation kit

I need some help clearing up some confusion.

Im sure people in used an advanced ovalation kit. For results, it shows either, blank circle - not ovulating , flashing smily face - high or solid smily face - peak.

I bought this kit last month, after my forth use i got a solid smily face (peak) so i stopped using it that month. According to the box, i shouldn't test once i 'peak' results.

This month, i started using it again. I finally got a flashing smily (high) on my last stick from that box so i went n got a new kit to continue testing till i got peak.

MY DELIMA: when i used the new kit the day after my old kit showed 'high', it showed a blank circle (low, not ovulating)....so i used the the new sticks but old head which showed "peak"..... same results when i tested it the day after.

What is going on? Which is accurate?