Editable datatable with server-side issue

Hello guys,
first of all, big thanks for the awesome product!
I’m investigating datatable control with enabled inplace editing functionality, server-side data source and dynamic loading. But it seems there is an issue. To reproduce it please follow steps:

1. Scroll the table to the middle of data
2. Than click on the editable column, for the first visible row. Inplace editor will be shown.
3. The topmost visible row will shift down (prior row will be loaded)

So, the question is: such shifting down of the first visible row - is it expected or it is really an issue?

Here is a snippet to illustrate the problem:
https://snippet.webix.com/kczfmpuj

Hello @Acrux ,

Thank you!
Yes, I can confirm the issue. Thank you for the report! We will fix it.
As for now, you can add scrollAlignY:false
Sample: https://snippet.webix.com/9tikhk51

Thanks for the quick reply!

Hello!
The fix is ready in PRO 6.3.3 version
https://docs.webix.com/desktop__whats_new_6_3_x.html#version633
In GPL version the fix will appear in 6.4 version