Hi @alojzy231
Thank you for the update. That’s really strange. I tried many different scenarios, and the column header is always mismatched no matter the settings. However, my final attempt revealed a solution, which is what I previously suggested as not the best way to do this in such scenario.
Please, check this example, where I used the solution you used in your initial demo, it works fine: https://stackblitz.com/edit/react-pd1kzb-ggrwx8?file=src%2FExampleComponent.jsx