I just "Downgrade" the workflow to version 8.0 and everything is working ok, except adding tags, so maybe you can fix something from your side so you don't need to wait for them
I have version 6.0.5 from their site, Alfred 2.6 (374) and Yosemite 10.10.1 Everything is working great. I hope this gives you and idea and you can fix it without depending on their updates.
Thank you