Sigh...now my upper tailgate wont latch shut.

[g300d]

I have the soft close trunklid.

The upper tailgate latch will not lock on the lower tailgate striker.

I tried manually engaging the upper tailgate latch but it will not lock. It springs back to open position.

When pressing the trunklid soft button, dash button, and key fob, you can hear yhe solenoid working.

I tried removing and reinstalling the softclose fuse (84 I think), and switching around the relays at the back (the same-colored ones only), no go.

What could it be?