It is easier to explain via the short video (I think it can be opened by anyone).
The BIG BUTTONS in Performance View that represent Sections that can be “Quick Jumped”, well those buttons work when the transport is not moving, but stop working during Play (and the only way, other than OSC, to go to a JumpSection is to hit the “Sections” bar which is far smaller, and on-stage, it would be far safer to hit a big Button instead).
Hey @nevillewhitemusic, unfortunately, the video you linked doesn’t seem to be public.
The quick jump buttons should already behave as you described, jumping to sections while Live is playing when you click them. Do you have the “Safe Mode” setting enabled, by chance?
Otherwise, this sounds like a bug, and I’ll investigate this further.
ok, I just granted you access to the video on the Gcloud (I set that to “Public”, so don’t know why there was no access).
Safe mode is not on.
and I uploaded the video to your site.
Thank you for the video, that’s definitely a bug! Could you let me know which version you’re experiencing this with? I haven’t managed to reproduce this issue on my end yet, but will continue looking into it.
I’m looking forward to your reply! 
Versions listed below.
GOOD NEWS - I see I made the “QuickJump” bug video on Mar 23, and that was the same timeframe, to fix another odd behavior, I hit “update” and Ableset installed beta .4 (I was using beta .2). And right now… GOOD NEWS…I cannot replicate the QuickJump “mystery bug”.
And, more truth. I just went back to that version of LIVEset, using Beta .4, and it seems this is ME. User error. Some of my locators did not have >> (only >). And some were not on the grid downbeat (don’t know if that matters). And it seems I had one >> locator, that was not working…so I deleted it and re-added it, and now the whole thing works! (Sorry, I think this whole thing was User Error…and it probably won’t be the last time).
I’m glad to hear this is solved!
Regarding the locators, while placing them on a downbeat is a good idea, you can also place them on any other beat as long as your global quantization is set to 1/4