Hi all,
I think that I have a bug here:
http://webix.com/snippet/46378117
When you try moving the resizer up, the bottom border of the section beneath the resizer gets unexpectedly expanded. This will happen regardless of whether minHeight, maxHeight, height, or even none of these are used.
As a side note, was the bug shown in the post linked below ever fixed?
http://forum.webix.com/discussion/3980/bug-resizer-moves-incorrectly-after-releasing-mouse-button/p1
I can confirm the issue, it was not expected that resizer will be used between cells of the accordion.
For now you can try to wrap bottom part in one more layout, it will fix the issue