It`s not possible to sort accordion-items in a list-style when the containing panel is fixed height, if no height is set it works fine.

In my Application i have something similar (way more complex) within a Tab that is within a border-layout , broke it down in the fiddle without all my stuff to make it easier to see/debug, and here also found that it must be related to the fact that there is a height set there.

Failure occurs when the list is scrolled down about the height of the current Browser`s Window, above this fold everything is fine.

See a fiddle here, this still can be reproduced with latest ExtJs 5, just change the Library in the Fiddle.

https://fiddle.sencha.com/#fiddle/b3v

Any help what to change would be great.
There are some notes in the fiddle, too.

Thanks,
Alex