Reply to Traktor 2.6 stuttering

Can't find the update thread so I'll ask here.
I updated to 2.6 for the better eqs and had no issue at first. Now I'm getting a stuttering and it's really doing my head in because I'm trying to record something. Anyone know what's causing it? I thought it was just with one track because it kept doing it at the same point just after I'd brought it in, but it just did it with the master track.
I got past that stage in the mix earlier without a problem but I've changed it around so need to record again.

Any help appreciated because I want to get this recorded toevening .