page change jump after transition but only first time

page change jump after transition but only first time

Hi all,
searching the web I have seen a lot of similar posts, but all of them very old and without aproper answer:

I have a jquery mobile application and I use phonegap build to deploy it.
if I specify a page change transition ( I'm using pop ) I can notice a 'jump' in the transition, but only the first time a certain page is loaded.
I can see it both on prepared pages ( already present as they are on the index.html file ) and pages that I fill and enhance after an ajax request.
I notice the problem both on iOS and Android devices.

I've played  with the idea that smooth transitions appear if the page is already in the DOM structure, but can't find a way to understand and fix the problem.

any ideas?