I have a dynamic prperty of type xhtml. When I see that property in edit mode it shows as longstring instead of xhtml in appearence.
Not sure what the issue could be off the bat. What NuGet version is installed on your CMS site? Does the xhtml property get rendered as longstring on OPE (on-page edit) or forms edit? Or both?
No addons on the site. Xhtml property render as long string only in dynamic properties. Page's xhtml property are fine while rendering.