What little poking around I could do seems to point to the Uploader doing some math on the serial number and not liking the result:

$ ./Meridian\ DAC\ Uploader
2016-02-03 18:06:30.411 Meridian DAC Uploader[1666:73704] Device Serial Number: 010002BE
2016-02-03 18:06:30.411 Meridian DAC Uploader[1666:73704] Serial Diff Result: -1

Soundserge

Antipodes CX + Roon, 818v3, DSP 7200SEs, 218, DSP3200s