Hi,
Couple of questions here..
Is the the Touch UI dialog for this component is created manually or converted using the tool ??
Is everything works well in classic UI with the new AEM version ??
Can you attach some screenshot on the problem you are facing with your touch ui dialog xml which helps us to understand the problem better !
Also, are you seeing any error in the browser when you perfome any of these edit operation.
Thanks,
Lokesh