Grid rows are disappearing at bottom part at grid first rendering and when user do scroll


I have split my dhtmlx grid like
when I render grid bottom row of first part is not rendering ,-issue
When I do scroll , some rows disappears , then I need to scroll little up/down to get them back.

I have enabled smartrendering
I have 20 as my preRendering size.
I have also tried setAwaitedRowHeight(29) for chrome
Nothings works for me

Please suggest the solution, some half blank rows seems very annoying Now.

Avinash Tambe


Can you please attach some kind of code sample that I can use to reproduce the issue?
So far I was unable to do it locally