Ext version tested:

  • ExtJs 5.0.1, 5.1.0.47 Beta; but at 5.0.0 everything is Ok (works fine).


Browser versions tested against:

  • FF v.15.0.1 (firebug 1.10.3 installed) and nearest versions (didn't test on every).


Description:

  • Some nodes disappear when performed vertical scrolling, also it must be said, that scrolling isn't smooth - it works with one jump.


Steps to reproduce the problem:

1. Create application with tab panel;

2. Insert tree with lots of data into second/third/etc. tab;

3. Expand it in old firefox (15 for example);

4. Try to scroll.


The result that occurs instead:



  • At the about 1/3 before end of scrollbar, tree content will jump on top, skipping some nodes.


Fiddle example:

http://ift.tt/1Bis0lI