I seem to remember that several people had similar problems with the V3b1 update. Basically, the values stored in the presets don't change, but the parameters they control do (which has essentially the same result).
Thanks for letting us know which presets have been affected, too!! That way, we'll know what to look out for, so if you find any more, please continue to post them. I'm sure there are a few more, and, as your experience relates, they can be corrected with a few minor adjustments.
