(a) Can you confirm what's the latest release of the AD-FMCOMMS4 board. i.e. is it REV.C or Rev.B
(b) from the link all schematics and gerbers, Layout and BOM says REV.B https://wiki.analog.com/resources/eval/user-guides/ad-fmcomms4-ebz/hardware
(c) Can you verify this is one (Rev.C, below) is one of ADI PCB. customer says they bought it from digi-key a few years back. see attached. customer clsaims it does not correspond to the schematics, layout etc as in (b).