Aqara Homekit Device Limit?

I´ve got the Aqara hub with Homekit integrated in hass.io as homekit devices. I also could add new accessories by tripple pressing the hub and then holding the new accessory for 5 seconds.
After rebooting hass.io the new device showed up on the integration page under the hub. This worked for 17 devices… but now it stopped working.

I have like 5 more devices that needs the be paired (they are of the same type as some already paired devices: motion and temperature & humidity sensors).
The hub says it’s connected successfully after the above workflow - but it is not showing up in the hass.io interface.

So my question: Is there a limit of usable devices via the Homekit integration that can be managed through hass.io? (There seems to be a limit of 100 devices for the hub itself - but im far below that number).

also any other hints to get the rest of the sensors integrated is appreciated.