Well, I don't know if was a best-practice fix - but in MacGuyver-style,
I renamed the file extention.myForm.xdp to myForm.xdp.xmlThen I opened
the file in Notepad ++, did a search for the subform name (as it
appeared in Designer).There I found I found the tag - so I
deleted that tag and its matching, closing tag to eliminate that
wrapping.Then I renamed the extention to XDP, reopened in Designer, and
now it appears to be working.Pro-tip for those that don't know and may
find themselves in a sim...