Niko Home Control II integration won't install

Hello,

I tried to install the Niko Home Control II integration with HACS but all it does it download, then after reboot HA (on RPi 4) the integration appears as a rectangle in HACS, but no control, nothing to configure. licking on it brings to the instructions to download.

However I should be able to configure the integration before, at least to tell it where to find the Hobby API or the touchscreen profile…

Looking at the configuration.yaml it looks unchanged from HA fresh installation.

Did I miss any step? Does anyone know how to fix this?

Thank you in advance!