Custom scroll problem

I’m using custom scroll in my grid, at first it’s not necessary, but when you deploy the subgrid it becomes necessary to use the vertical scroll, when I do that the scroll does not turn on until I take the cursor out of the cell that contains the grid and return to it

I open sub row and scroll is not visible.

Then I leave the cell and re-enter

I’m using a “fixed” version of the custom scroll, where it’s supposed don’t happen this

Any help is welcome… in advance thank you

I apologize for the delay.
The problem is confirmed. Please, try to use the updated customScroll package from the attachment.
https://files.dhtmlx.com/30d/65572e86da534a7fccf8dddf02a2bc07/customScroll.zip
It should fix the problem with the vertical scroll on subgrid/subrow/subrow_ajax open

Thanks. That solve my problem