Getaddrinfo ENOTFOUND when connecting to internal Redis

Thanks, that was it @John_B - I am coming across the same issue as this thread now though: Redis connection getting fall

Working in development, setting my REDIS_URL to the Render external redis URL, the app works perfect.

Deploying to render, my REDIS_URL set to either the external URL, or the internal Render URL, I get the following error:

Jul 19 02:25:18 PM  Unhandled Rejection at: Promise {
Jul 19 02:25:18 PM    <rejected> Error: Redis connection to 127.0.0.1:6379 failed - connect ECONNREFUSED 127.0.0.1:6379
Jul 19 02:25:18 PM        at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1129:14) {
Jul 19 02:25:18 PM      errno: 'ECONNREFUSED',
Jul 19 02:25:18 PM      code: 'ECONNREFUSED',
Jul 19 02:25:18 PM      syscall: 'connect',
Jul 19 02:25:18 PM      address: '127.0.0.1',
Jul 19 02:25:18 PM      port: 6379
Jul 19 02:25:18 PM    }

Code is the exact same as development. Any ideas?