Zooz zen76 switches refuse to pair with SmartThings 2nd Gen Hub

I’ve done all the trouble shooting that the net suggests.

Excluded the switches multiple times (they are seen quickly every time, green light and all)
Added the custom device handler.
Moved the hub to within inches of the switches
Tried the scan for device option, the QR code option, and by the manufacture option
Tapping the top button 3 times like normal
Tapping the top button 5 times like suggested if 3 doesn’t work

All I get is the blinking blue light followed by the red failure light.