Cannot add tapo cameras to homkit

[Evil-Teddy]

Hi, I have the problem, that I cannot add my tapo cameras into homekit.
I have them in scrypted and configured with the ONVIF plugin and I can see them in scrypted. It seems to be fine everything. With the homekit plugin I cinfigure it as a standalone accassory and I get this QR code.

But if I scan that code it takes a long time and then I get the message that the device cannot be added and the device is not available.

I hope someone can help me, I would like to add them into homekit, that's why I use scrypted.

[Evil-Teddy]

I just found out that I even cannot add the homekit bridge from scrypted, I get the same failure then.