Recently, the Action "Get Attachments from Mail Messages" started giving me a message (from LB) that says an error was encountered. The options are "OK" or "Show Workflow". Doing the latter brings up the /Library/Services/ folder with "Save Attachments to Desktop.workflow" highlighted. The finder says that file was last modified 12/31/14.
This started around the time that I upgraded to Sierra. I just updated LB, and that did not make a difference.
Any ideas how to fix this?