Unable to get issuer certificate

Hi all,
I have setup HTTPS for Elasticsearch Cluster (using a third party certificate etc..). This seems to work fine, as shown below.
However, when trying to connect Kibana, I get the following error message
"Unable to retrieve version information from Elasticsearch nodes. unable to get issuer certificate"
I have configured the following settings

Any ideas?

Can you try changing the / to \ in the path variables? since I assume you are on Windows based on those paths.

Hi @Marius_Dragomir
Thank you for your suggestion,

however I'm still getting the below error.

Any ideas?
Regards, Alan

To add to the above, I have noticed the below issue when trying to use postman. Could it be related?

You will have to install the root certificate to the windows truststore.