I have a Jira Trigger node in order to start the workflow when an event is triggered in Jira. This event has to be an issue creation with a specific type.
There is no error, but when I execute the workflow, it waits for the event trigger. I create a new issue with the type filter (I tried it also without any filter) and nothing happens.
I can see that the webhook gets created in Jira. I have admin rights and my credentials are correct in the jira trigger node.
Then n8n is not configured correctly. If you compare the Webhook Callback-URL and the URL you type in your browser, that will be probably quite obvious.
Generally, make sure to follow the Server Setup Guide to be sure that it is configured correctly.
In your case, I would assume that the environment variable WEBHOOK_URL is not set correctly. A list of all environment variables can be found here.