error accessing cell

This problem started occurring after upgrading from 3.6 to 4.1.2

I used to be able to access a cell using MyGrid.grid.cells(iRow, iCol).

Since the upgrade, there are certain times that line throws an ‘_cellType undefined’ error.
However, I can still access the cell using MyGrid.grid.rowsAr[iRow].cells[iCol].

I can’t just search and replace because I use a lot of methods such as:
MyGrid.grid.cells(iRow,iCol).setBgColor,.setTextColor,etc.

What could cause that issue?

This error happens on split grids.

However, calling grid._fake.cells(iRow, iCol) works

Unfortunately the issue cannot be reproduced locally.
If the problem still occurs for you please, provide with a complete demo, where the problem can be reconstructed locally.
Here you can find a tutorial about creating a complete demo:
docs.dhtmlx.com/tutorials__auxil … pport.html