When I tried at first I had indeed in the YAML still an entry in the configuration file. I then removed and double checked all the other Hass configuration files like packages or sensors file.
So the second time all was removed and indeed after removing it all, the new integration Buienradar popped up, BUT also all the 108 non available entities popped up again.
Recap: all was removed also in hidden files and configuration file; the integration came up as a new one. After configuring also the non available entities came up again.
Edit: What I found odd was is the fact if I add the integration Buienradar through the UI it right away knows my longitude and altitude and thus also the unavailable entities?
(Or does it get the longitude and altitude from the configuration file?)
Anyway still confused how it sees these entities while they all have been removed from the hidden files, core entity and core core device.
Great to know, but still no answer why it still sees the 108 non available entities. That’s so odd to me, what do I do wrong when it comes to these entities.
Again all have been removed and yet they pop up