I am currently unable to send emails, and autosave is also not working. I am seeing messages in the log like: Oct 02 13:39:43 ben-x1 evolution[21328]: Failed to call a DBus Proxy method org.gnome.Evolution.WebExtension.EWebKitEditor.WC0x55be620a81f0::DOMRemoveEmbeddedStyleSheet: Invalid pag> Oct 02 13:39:43 ben-x1 WebKitWebProces[21476]: Cannot obtain WebKitWebPage for 34 Oct 02 13:39:43 ben-x1 evolution[21328]: Failed to call a DBus Proxy method org.gnome.Evolution.WebExtension.EWebKitEditor.WC0x55be620a81f0::DOMEmbedStyleSheet: Invalid page ID: 34 Oct 02 13:39:43 ben-x1 WebKitWebProces[21476]: Cannot obtain WebKitWebPage for 34 Oct 02 13:39:43 ben-x1 evolution[21328]: composer_build_message: Failed to retrieve draft content
Thanks for a bug report. This particular one had been reported already, thus I'm marking it as a duplicate. *** This bug has been marked as a duplicate of bug 1757243 ***