Simencas

[data grid] Performance decline/resize stuttering after upgrade from v6 to v8

6

### Steps to reproduce Steps: 1. Open this link to live example: [v6-example](https://codesandbox.io/p/sandbox/v6-transition-v37lh5) | [v8-example](https://codesandbox.io/p/sandbox/v8-transition-r5mqsf) 2. Click 'Toggle Width' button in top left corner to make the grid column expand...

[data grid] CheckboxSelection not working when any columns are pinned left

5

### Steps to reproduce Steps: 1. Open this link to live example: https://codesandbox.io/p/sandbox/green-fog-3zgm7h 2. Click 'Toggle checkbox selection' button underneath the grid ### Current behavior The checkboxes does not show...