Terry, The graphcanvas plugin also stopped working fully after the switch from python 3.5.2/PyQt5 v5.7.0 to python 2.7.13/PyQt4. The 'Graph' tab display was blank, and I had to run 'graph-toggle-autoload' to display the graph after a reload.
I raise this as a new issue but it may be related to the Bookmarks pane disappears <https://groups.google.com/forum/?fromgroups#!topic/leo-editor/Qz6kBKvYDOw> issue as both plugins use c.db and subject to the pickle protocol. Regards Lewis -- You received this message because you are subscribed to the Google Groups "leo-editor" group. To unsubscribe from this group and stop receiving emails from it, send an email to leo-editor+unsubscr...@googlegroups.com. To post to this group, send email to leo-editor@googlegroups.com. Visit this group at https://groups.google.com/group/leo-editor. For more options, visit https://groups.google.com/d/optout.