Today I tried adding a second server to host one of our discourse instances. The container is configured to use an external redis, postgres, and storage servers - its web-app only. Thus far we’ve been running the single server sites behind HAProxy without issues. When running with 2 servers behind HAProxy we see quite a few 404s from nginx for JS files. Removing either server from HAproxy stops the problem. The URLs for the files that 404 appear to be identical so I’m stumped as to why they wouldn’t be served by either server.
There are no overrides in the Developer settings. We’re running 2.4.3 stable.