Hello.
One of the dev website require an IP restriction feature, and it has worked cool the last 2 months, and IDK maybe after the update to 12.3 maybe some another reason, but it stop worked.
I use "Block all IP addresses" then exclude my/client IP and I still have Forbidden 403.
If I disable this - the website continue working. If I Allow all and blacklist my ip - it doesn't work too so it looks like it stops recognizing ip addresses correctly.
First I thought that it's up to CloudFlare (as the dev website on a subdomain) but looks like not because I already disabled proxying + again last 2 months it worked with CF too.
Also, I have copied this website to the STG domain and IP restriction start working. Maybe something with CF domains with and without proxy too.. just strange so leave it here