Arp Loop glitches

I have been having an issue recently where I create a three note arpeg and run it in a loop over 8 bars and it does a little hiccup at the start of the loop as it loops round . I have tried checking for any notes out of step, checking for any note extensions past the clip changing to a uniform velocity …you name it . The annoying thing is that it it only does it sporadically and not every time .
Is this a known issue ?
Is there a fix or setting adjustment that I am overlooking ?
It mostly happens with my Access Virus TI but that is solid in nearly all other respects .

Any suggestions would be greatly appreciated .