Fedora IoT: "Re" claiming device after reflash?

I am struggling with a Raspberry Pi 3 that I am trying to use with Fedora IoT.

I had to reflash the SD card, and not I can’t get the SSH key to work. Zezere didn’t ask to “re” claim the device, and it seems my already configured SSH is not being pushed to the device.

There is not an apparent network issue, so I don’t know what could be wrong and what should I do.

Any help on this?