Arlo Pro 4 Camera add again fail

I removed the Arlo Pro 4 camera in Smarthings and I not getting it back. Everything works in the Arlo app, if I want to add the device to Smarthings, everything works too. There is even a message that there is a connection between Arlo and Smarthings. But the camera is not added (without an error message). Did I not remove the camera correctly at the beginning? Is it possible to remove the camera “deeper” somewhere?