'NoneType' object has no attribute '_base_manager' when looking at user details

[chriscn]

I did an upgrade to Netbox and in the process migrated which database it was on; now I can no longer access User details.

The full error is:

<class 'AttributeError'>

'NoneType' object has no attribute '_base_manager'

Python version: 3.12.3
NetBox version: 3.7.4
Plugins: None installed

[candlerb]

Get a full backtrace, by setting DEBUG=True in configuration.py.