Any fix for this? I am seeing the same issue as well. My edit tool is set to "Honors the settings in the web map"
Odd thing is that they edit box looks fine in the builder view but when launched i get the overlapping delete and close buttons like your screenshot above.
I have cleared cache and reloaded, deleted the edit widget and re-added, tried multiple browsers, modified the underlying web map, and removed allow attachments for the edit layer. None of these changed the widget layout problem.