Enforcing v3 Web UI?

Is there a certain way to implement the v3 Web UI?

I just used the

version: 3

on one on my esp32 devices, and it displayed the Version 3 Web UI, however when I did the same on the others, it still displays the version 2 Web UI.

Any ideas how I can get all my devices over to the v3 UI?

Thanks

A caching issue perhaps?

I did try incognito.

Do you want to post a screenshot of your web page?

Oh, you did recompile and upload?

Ha, im pretty sure I did recompile and reupload.

I will double check this to be sure it was late.

Just recompiled and re uploaded and can confirm still not working.

Version 2 vs Version 3 running on different devices, however both with the same code.

web_server:
  port: 80
  log: true
  local: True
  version: 3
  include_internal: true
  auth:
    username: !secret web_server_username
    password: !secret web_server_password