SSL cert not issuing on a partial (CNAME) setup

The zone is teamlex.com and it is proxied and CNAME'd to Cloudflare:

dig +short CNAME www.teamlex.com
www.teamlex.com.cdn.cloudflare.net.

The www universal certificate has been pending for over a day now.

I've opened a ticket and have tried to escalate it with our engineering rep but still haven't heard back