Non-breaking space named entities in manuscript content cause an export error
As described in manuscripts-frontend#196, Pressroom throws an error exporting to PDF or DOCX (at least) when a manuscript's content contains non-breaking spaces encoded as
.
One possibility - if it's not being done already - is that this can be fixed in Pressroom by providing an XHTML doctype, so the DTD can be used for defining the named entities when parsing the XHTML.