I created a simple New Responsive Form in a SharePoint list and was able to publish it multible times but suddenly, I was only able to save new versions but not able to publish it anymore (See error message attached). The bottom line in the designer shows that it schould be published but the new version will not be opened on the list. I deleted the whole list and created it from scratch and the same behaivior, after a couple changes the form gets an error if you try to publish. Export- deleting - re Import does also not work,The last change bevor it braked was adding and removing a rule but not shure if this was the trigger.