
Hi @Anonymous ,
Do you mean that the Width property of All data cards in your Edit form has been decreased to 0 when you open your form?
Based on the issue that you mentioned, I have made a test on my side, and don't have the issue that you mentioned.
Please consider take a try to turn off the "Improved app rendering (final validation)" option within Advanced setting of App settings of your app, then re-load your app, check if the issue is solved.
Best regards,