MQTT TLS not working

I am trying to connect my MQTT TLS Server on Docker locally. But someway, it doesn't work at all. I have configured the server site with this following tutorial:

and this is what I configured in NodeRED:

The Mosquitto configuration file looks like this:

listener 8883
cafile /home/TLS/ca.crt
certfile /home/TLS/server.crt
keyfile /home/TLS/server.key
require_certificate false 
tls_version tlsv1.2

Somehow my flow is always yellows:

Moreover, this is what I got on Docker logs:

Besides, I have tried with MQTT Broker of Eclipse and it works like a charm!?!

Please give me a hand. Thanks in advance.

There was a thread on this a while back in the forum, you might want to search for it. The answer was fairly involved I seem to remember.

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