Heard of this happening a couple times. A local owner here had it happen he sent it back to bwoody to have them fix it, I have seen another where it broke at the weld and left a hole in the intake tube.
How did you install it? Bracket first then TB, tighten the nut at the bracket first then the bolt clamps? I attached it to the tb first then fit the bracket on the bolt, then tightened the nut down then tightened down the clamps have not had any issues yet. The silicone really sticks to the tb so I wanted everything to be tight before I tightened the couple so nothing was stressed already before the motor started moving around