TL;DR: Do I have to wait for the Full to sync before a completely separate hashboard in my Standard is able to mine? That seems pretty silly.
I just got a Full & Standard. After plugging them in, I had the problem with the unseated NVMe drive and I've already reflashed my install because I made the mistake of accepting the system upgrades when the machine first booted. (I've since turned off all of the repositories so it thinks I'm fully upgraded.)
ANYWAY...
I'm still waiting for the node to sync. After reading the thread, I'm assuming the miner isn't staying running on the Full because syncing is overheating the CPU. Meanwhile, my Standard is sitting there with a solid red LED on the front, connected via the USB cable, doing nothing. So I restart the miner, it detects both of them, starts them up--going from solid red LED to flashing LED--and then immediately proceeds to show them inactive.