Remove www for wildcard SSL in Cloudflare

I read article in docs, and it says that Cloudflare Universal SSL certificate covering up to 1st level subdomains. So I tried on my example:
And it works correctly only without www which is making is making this subdomain 2nd level. So I needed to remove www for subdomains and I added page redirect rule but it is not working and I don’t know why. Already checked similar cases on forum, but without success.

Rule config:

A records:

Does anyone know how to remove www definitely?
Thanks in advance.

A post was merged into an existing topic: Remove www from subdomains