I doubt this has changed, but how is your QSIG GW defined in CUCM, is it MGCP? How about if you convert it to SIP or H.323? Remember QSIG is TDM protocol, the protocol between CUCM and GW where QSIG is connected to can be any voip protocol, though QSIG over SIP may not be an option in your release (don't recall).
From the admin guide it applies to CUCM a 10 as well:
If the route group contains a gateway that uses the QSIG protocol, only gateways that use the QSIG protocol display in the list. If the route group contains a gateway that uses the non-QSIG protocol, gateways that use the controlled intercluster trunks, which are QSIG protocol, do not display in the list.
As Chris suggested I would try converting to SIP or H323.
These are the paths to get to each CCX logs through CLI. They may be helpful if you are having issues accessing RTMT or downloading logs through it.
If you want to download them you have to prefix "file get " and you can add one of the options (re...