HI Joe,
I know it is frustrating as I had the same problem.
You have to be exactly on the beat in order to play it back seamlessly. You have to record it again and give it another try.
One way of doing it is to slow down the beat then speed it up in replay.
If you play for two measures, but only record on 1-2-3-4 1-2 then 3-4 will be a pause.
You have to play the full measure.
I hope this makes any sense.
Eric