ONVIF: Missing cameras / entities on NVR

Configuration
1

Have a Dahua NVR (DHI-NVR4208-8P-4KS2) with 4 cameras. I see a couple of issues

  1. Only 1 of the cameras appear in the entities list under the onvif integration
  2. onvif tells under the integrations page there is 1 device and 20 entities, however only 15 entities are actually listed

In the debug log I see e.g the following entries. How is the listed cameras disabled? I can find them using 3rd party windows applications like BlueIris or Onvif Device Manager, and the streams are accessible

Any known issues? How to proceed…?

2020-09-18 17:26:57 INFO (MainThread) [homeassistant.components.camera] Setting up camera.onvif
2020-09-18 17:26:57 INFO (MainThread) [homeassistant.components.camera] Not adding entity Dahua - MediaProfile_Channel1_SubStream2 because it's disabled
2020-09-18 17:26:57 DEBUG (MainThread) [zeep.asyncio.transport] HTTP Post to http://192.168.1.108/onvif/media_service:
b'<?xml version=\'1.0\' encoding=\'utf-8\'?>\n<soap-env:Envelope xmlns:soap-env="http://www.w3.org/2003/05/soap-envelope"><soap-env:Header><wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"><wsse:UsernameToken><wsse:Username>admin</wsse:Username><wsse:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordDigest">nnn=</wsse:Password><wsse:Nonce EncodingType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary">nnn==</wsse:Nonce><wsu:Created xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">2020-09-18T15:26:57+00:00</wsu:Created></wsse:UsernameToken></wsse:Security></soap-env:Header><soap-env:Body><ns0:GetStreamUri xmlns:ns0="http://www.onvif.org/ver10/media/wsdl"><ns0:StreamSetup><ns1:Stream xmlns:ns1="http://www.onvif.org/ver10/schema">RTP-Unicast</ns1:Stream><ns2:Transport xmlns:ns2="http://www.onvif.org/ver10/schema"><ns2:Protocol>RTSP</ns2:Protocol></ns2:Transport></ns0:StreamSetup><ns0:ProfileToken>MediaProfile00102</ns0:ProfileToken></ns0:GetStreamUri></soap-env:Body></soap-env:Envelope>'
2020-09-18 17:26:57 INFO (MainThread) [homeassistant.components.camera] Not adding entity Dahua - MediaProfile_Channel3_SubStream2 because it's disabled