Have done this now with 3 docs, and I get the message a font is not installed. But... it is.
Is this a known issue, or could it be a mismatched font file? By mismatched, I mean one version of the font on the computer, another embedded in the doc. -- Ken Mac OS X 10.11.6 Firefox 51.0.1 (64 bit) Thunderbird 45.7.1 "My brain is like lightning, a quick flash and it's gone!"