Midi stopped Recording Data on Track HELP

I can’t figure out the reason that my Midi has stopped recording data during recording the track.
I get data blocks for the first measure but nothing Else, when I press my controller while recording, I see the traces of lines appear, like it’s Recording ;Behind the cursor as it’s moving, but none of the data stays on the track, recorded.
I’m almost sure it’s some type of adjustment that I’m just not familiar with, but whatever the case I was hoping that someone could please explain to me how to retrieve my midi back to recording. I have Cubase 7.5…
Thanks and God bless