Hi,
The timeline renders and then the contents get blown away. This usually happens if the DOM above the rendered twitter timeine iframe is moved or deleted.
In this case the timeline renders, and then I think this piece of code recreates the HTML by using innerHTML. This effectively deletes the twitter iframe and recreates it. Due to browser iframe restrictions, the timeline iframe contents get deleted after this action.
roe.js:
if (f && o.innerHTML)
o.innerHTML = o.innerHTML;
I was able to reproduce with this jsfiddle: http://jsfiddle.net/indianburger/CU8HM/1/ (edit with your widget id)
I would recommend changing the javascript code so that this innerHTML code is not applied on any parent of twitter iframe. You could move the twitter embed html outside the divs where this innerHTML code gets applied.
Hope this helps
Cheers!