2016 E4 High Voltage Conversion in SD

ok… got a few to do the last couple steps but need help troubleshooting -

Wired it up in the back with a Volt Master disconnect / fuse

Crossed my fingers and popped in the disconnect fuse

Turned on the BMS, turned on the key… nothing. If i turn the key all the way over (kind of like you’d do to engage the starter in a gas car, the display boots and then I get this -

I’m wondering if somewhere along the way I loosened the key switch circuit? Thoughts?