Slider UI issue with Kendo Extend

[AbTnk]

Hi,
I have a project working fine in every condition, but when i set the display: none for rangeslider Div and then use kendo extend minimize and extend back to original position but after setting display:block for rangeslider its UI slider breaks (thumb doesn't move any side).

But when i Debug the Issue, the slider works perfectly.

Thanks for the any help you can provide.