Have you confirmed your C7 is up to date?
If you've completed the C7 Z-Wave update if it applied to you...
hubIPaddress/hub/zwaveVersion should return:
VersionReport(zWaveLibraryType:7, zWaveProtocolVersion:7, zWaveProtocolSubVersion:18, firmware0Version:7, firmware0SubVersion:18, hardwareVersion:1, firmwareTargets:1, targetVersions:[[target:1, version:7, subVersion:18]])
hubIPaddress/hub/advanced/installZipgateway718 should show return:
already running v7.18.3