I have just updated to this latest krpano version having not used the software for some time. The last software version I used was krpano-1.19-pr3. I have recreated a tour using the latest release however the movement is very jerky compared to the previous version. I have tested both on the same device using the same content and the previous version is not jerky at all.
Is this a known issue? Thanks.
No, there is no known issue and there should be no reason why the movement would be very jerky (assumed you comparing the same 'display method' - html5 webgl, html5 css3d or flash).
Please post your both links - the old and the new one - and tell more about your device.