Generated VPN Configuration does not include ca.crt, client.crt and client.key RBR750

This is really strange.  Aside from the missing information, the only obvious difference between your file and mine is

• I have set the verbosity level to 5 so that the log will include more detail, i.e.
  verb 5 rather than
  verb 0
• I do not have that last line
  dhcp-option DNS 192.168.4.1
  OpenVPN has an explanation on "pushing" DNS servers to client devices that has a different format (and also doesn't make clear WHY a person would want to do this.)
  https://openvpn.net/community-resources/pushing-dhcp-options-to-clients/ 

Maybe whatever is causing the dhcp-option line to appear is also causing the certificates and keys to be empty?

For certain, there is supposed to be content in those fields.

Sometimes Orbi routers just get "wonky" and the user has to fall back on the Last Resort of a Factory Reset.

I always try a quick reset first:

• Save a copy of the configuration file.
• Do the Factory Reset.
• When the router restarts, connect using a web server
• Proceed through the setup process, doing the least possible
  • Do not change the default WiFi credentials
  • Do not enable anything (Armor, Parental Controls, etc.)
  • Do not register the product
  • Just plow ahead until....
• A page comes up offering a choice of (a) enter the configuration manually or (b) reload a saved configuration.
  Pick the reload option.
• The router will reload the saved configuration and reboot.
• Everything will be set to the previous values, except that perhaps any 'gunk' that had gotten into the operating configuration will be gone.  All WiFi devices will reconnect as if there had been a temporary power outage, getting the correct IP assignments, etc. etc.

I have been able to complete this entire process in under 10 minutes, whereas entering the entire configuration by hand takes me about two hours (and I make a horrible number of typing errors!)