504 gateway time-out upgrading from 3.4.2 to 3.5.0

[DLHirk]

Upgrading from 3.4.2 to 3.5.0 following the steps as defined for an upgrade (copied over the configuration.py, ensured the local_requirements.txt file was copied over, copied gunicorn.py into place). The end result is a 504 gateway time-out issue. I can revert back to 3.4.2 with no issues.

The upgrade.sh script for 3.5.0 ran with no errors; restarted the netbox service, and restarted the nginx service, but no such luck resolving the time out issue.

Did I miss something as part of the upgrade process?

[DLHirk]

Other details:

Python 3.8
Redis 5.0.3
nginx 1.14.1

[DLHirk]

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