GPER14i + CSS610 = No link

CSS Switch will not show a link with the GPER14i.

If I place a Ubiquiti switch inline, the GPER works fines. Remove the switch, GPER will no longer link. GPER to UBNT switch works fine. GPER to CSS will not show link.

GPER shows power, can access direct connection on GPER, devices on GPER work. At no point will CSS show a link with GPER.
Using a passive 48V injector, Tycon POE-INJ-S with MeanWell 48V PSU.

CSS610-8G-2S+ (2.17)
GPER14i (2.18)

Topology:
CSS610 (Port8) > GPER14i (Port1)

Kewl, glad I made a good choice of hardware…

Replaced with another brand of PoE In to multiple PoE out, works great. No other changed made, same cable, same PSU, etc.
GPERs, creepers…
First disappointing experience with Mikrotik, quite unfortunate.