Increasing your draw wieghtmight haveslightly changed your nocking position ,try adjusting your nocking point slightly down..I also found a similar problem with my own bow [BowTech Patriot Dually with the MZE rest]this summer ,I'm sure once you adjust your nocking point you'll be back in the running .

Now that you've found that the MZE had lowered itself ,if you had done a paper test you would have figured it out either nock point down or arrow rest up.

nubo