1 out of 4 certificates doesn't seem to work

My domain is:
rapid-automation.net, sawgrasslakes.org, www.rapid-automation.net, www.sawgrasslakes.org

I ran this command: Chrome browser

It produced this output:
https://sawgrasslakes.org shows an 'unsafe site'.
While https://www.sawgrasslakes.org is fine.
So are the other two.

My web server is (include version): Apache 2.4

The operating system my web server runs on is (include version):
Ubuntu 20.04

My hosting provider, if applicable, is:
Self hosted

I can login to a root shell on my machine (yes or no, or I don't know):
Yes

I'm using a control panel to manage my site (no, or provide the name and version of the control panel):
No

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot):
1.14.0

"
Found the following certs:
Certificate Name: rapid-automation.net
Serial Number: 42e756062e33f62884a840c4bc486b40296
Key Type: RSA
Domains: rapid-automation.net sawgrasslakes.org www.rapid-automation.net www.sawgrasslakes.org
Expiry Date: 2021-07-14 04:23:33+00:00 (VALID: 89 days)
Certificate Path: /etc/letsencrypt/live/rapid-automation.net/fullchain.pem
Private Key Path: /etc/letsencrypt/live/rapid-automation.net/privkey.pem

"

Looks good currently, maybe apache needed a restart? I see the sites aren't configured to auto redirect http to https but the https version of each site is working.

Thanks for looking into it! Much appreciated.
And indeed it now seems to work for me too. I DO religiously restart apache after messing with .conf files, so I wonder if this cert stuff is maybe cached somewhere, with a cache timeout? (Although these four were all done at the same time).
Oh well, not important: it works now.

Some more information!
It appears to be a Chrome browser issue! When I tried this 10 minutes ago in a new tab, to my surprise it indeed worked the way it should.
Then I noticed I still had a tab with the failed attempt, and I did a refresh, and again it said 'Site not secure" (but oddly, if I expanded that 'Not secure' message, it DID say 'certificate valid').
I then browsed to something else, from that tab, which worked, and then I typed in the failing https URL again and AGAIN it told me "Site is not secure". When I then removed that tab, and typed in the same URL in a new tab, it worked just fine.
So, it must be a Chrome issue, with not clearing things (cached?) on a per tab basis. Deleting those tabs fixed it.

Thanks for reporting that. This could help others having the same problem.