Can't move Mail to mailbox when Offline in Sierra
I recently upgraded to Sierra on 2 computers and experienced the same behavior on both:
When offline, mail will not allow me to drag received mail into any mailbox, instead I get a message such as "Couldn't load body for LibM{554708:52161:Wh*:2017-08-29 17:04:14 PDT}".
I've quit mail and rebuilt mail folders but this does not change the noted behavior.
Not unlikely I'm missing something but need help.
Thanks,
Bob