Importing large-ish docx files that have been exported using the DocxFormatProvider hangs on provider.Import(stream); The same document imported directly from word works fine. Exporting the document as html then importing works fine. Only when exporting as docx, then importing again does it hang.
Seems to either be an issue with a high number of spans or images as I can export and import documents of far greater size as long as it is plain text without a lot of embedded links.
Easy to replicate:
1) Create a new document, copy the contents of the wiki page https://en.wikipedia.org/wiki/Parthian_Empire (high number of formatting changes and images)
2) Paste into document and export to docx
3) Try to import
The exact same document created directly in word and imported to RadRTB imports fine (2-3 seconds)