Hi Luca,Thanks for contacting Syncfusion Forums.QUERY: Data is not loading when isResponsive property is set to trueFrom your query, we understand that the data for the grid is not loading when you set "isResponsive" to true. We have validated the issue. But we are unable to reproduce the reported issue at our end. For your reference, we have created sample as per your requirement. You can download the sample from the below location,Please provide the below details so that we could validate further,1) complete grid rendering code2) version details3) if you have made any CSS customization for the grid, please provide those CSS customization details also.4) screenshot of error with stack trace if any. Also you could use the "actionFailure" event to find errors.5) provide us your grid model. Please refer the below screenshot for getting grid model.You can copy the model, paste it in notepad and share us.Please get back to us if you need further assistance.Regards,Padmavathy Kamalanathan