Evil,
Thanks for the tip on what you found. We are working very hard on compatibility updates for the v5.1.2 release, due out within about a week. The .fade class is something we spent waayy too much time working on today, but finally have a solution that applies that style only where it should. It was much more difficult than just adding a prefix, unfortunately, but we're pretty happy with the solution so far.. though a lot of testing is in order now.
Thanks again for the report, and when v5.1.2 is out, definitely let us know if it fixes the issue or causes any other unforeseen problems.
Alex