Nested Rows Error : Cannot read properties of undefined

Hi !

I’m using Handsontable 12.1 with Vue 2 and i’m having an issue with the nested rows plugin.

I have a very simple setup where I have one group that contains 2 child group.
Each child group contains a child row.

image

When i’m adding a new row above or below the first one with the context menu like so :

image

it trigger this error :

After that, the whole table become unresponsive and I can’t use it anymore.

Here is a fiddle to reproduce the problem :

Handsontable example - JSFiddle - Code Playground

Do you guys have any idea to solve the issue ? Thanks !

Duplicate of: https://github.com/handsontable/handsontable/issues/9670