Why is there a small fraction of a bar added? (OS2XL)

I'm trying to loop beats and I see on grid edit and on the main screen, if I'm doing a two bar loop, there's a very small part of a bar added after the end of the second bar that plays through.

It's throwing off the time of the loops I'm trying to make, and hits that are recorded on this small segment aren't able to be deleted on grid edit mode.

Can anyone help me fix this issue please?

It is unlikely you have an 'extra bit' as you describe. I think you will find that is just notes at the end of the bar.
Go to sequence edit window instead and look. MODE + PAD 14
What does it say? you should see those notes now in that screen and delete them.

So many ways to record a two bar loop correct.

i know what your talking about, happens to me sometimes when i have a 4 bar loop then truncate it to 2 bars. sometimes there is that little note that forgets to be delted.

you can delete it in grid edit though, just push shift then zoom in (one of the f buttons) and now you will be able to highlight it and delete it.