Hi @Tampa! Thank you for the additional information.
Can you help check if any of these previous tips might help:
- Nginx/1.4.6 (Ubuntu) - 504 Gateway Time-out
- [SOLVED] Mattermost Nginx Configuration
- No connection to https nginx reverse proxy with lets encrypt cert
- This thread: SOLVED - Nginx Config Ubuntu 16.04
If not, I encourage you to join our nightly build server and then join either Developer Toolkit channel or Peer-to-peer help channel to discuss this with our team - I don’t have enough knowledge about this topic, but our engineers can most certainly help and they are more active at the build server.
Let me know if you have any questions!