Bluetooth - "Needs attention"

I have HA installed on a Raspberry PI4 with the following versions:
Operating System 11.1 and Core-2023.11.3
Under Integrations, I have one Bluetooth with 2 devices. One that says ‘Failed setup, will retry’. Nothing I do seem to fix that. I have a few questions I hope you can help with;

  • How to fix the above?
  • Does the Raspberry PI4 have more than one Bluetooth interface? It looks like that (one working and one NOT working) but that does not make sense to me.
  • One of the integrations appear to be working so I would like to know what I can use it for? Can I integrate other Bluetooth devices and if so, how do I do that?

Please help, I am at a dead end here.
Thanks in advance.