I have forwarding set up on two domains, with exact same settings across to board, to the letter, and one is forwarding perfectly, the other refusing to.
They are all registered with GoDaddy, but using Cloudflare nameservers.
CNAME www is not proxied - I read that maybe it should be? but bendonovan.co.uk hasn’t been proxied for some time but is forwarding fine? So I didn’t want to risk changing it.
I depends on whether you want to proxy it. If you want page rules to fire, you’ll have to proxy it, however I believe your service provider already is on Cloudflare, hence the UI will probably not allow you to change that (you can’t double proxy).