Maybe I am not explaining my issue correctly and I apologize about that... let me try again.
I have been using Pihole to block ads and OpenDNS as the Updtream DNS to block adult content. It has been working great until recently when I noticed adult sites were not being filtered.
So, I started trying out different things and that's when I notice that OpenDNS is the only Upstream DNS that's not working for me when using the Pihole UI... whether I use the right side or the left..whether I use 208.67.222.222 - 208.67.220.220 or 208.67.222.123 - 208.67.220.123. If I set it in Pihole, it has not effect at all.
All other Upstream DNS servers from the Pihole UI work fine, just not OpenDNS, either IP address.
But, if I point my PC to OpenDNS, then it blocks adult sites.
This is why I am thinking it has to be something with Pihole and OpenDns Upstream not working properly. This started happening after the last Pihole update.