When editing text items internally with Word, Word actually saves the RTF file in DOC (native Word) format after editing. We have a utility that will convert Text items in DOC format back to RTF (it uses Word to perform the conversion, so that must also be installed).
To use it, download and extract
this ZIP file to your Ultra Recall installation path (typically C:\Program Files\UltraRecall), open a Command Prompt, and run rtfconvert.exe with the .urd file(s) to convert as parameters, like so:
"C:\Program Files\UltraRecall\rtfconvert.exe" "c:\path\to\database1.urd" "c:\path\to\database2.urd"
And as always, backup your .urd files first.
Enhanced RTF editing is one of the additions in the next release, which will be entering beta soon. I can include you on the notification for the beta if you'd like.