I figgered out the issue.
My old latch would stay in the open position, allowing the locking finger to protrude further out than when it is locked.
The new latch stays in the locked position, not allowing the finger to enter into the locking hole in the windscreen.
I have to manually open the latch on the new roof.
And to think I haven't driven her for two days because of this issue.
Sad face.
