Question on ZeroTier Authorization

On one of my devices, I joined a network created by myself. Then, in ZeroTier Central, I can see I have 23/24 devices, which means I have one unauthorized device now. However, on the detailed page of my network, I can only see 23 devices and therefore I cannot authorize the newly joined device. Does anyone know how to resolve this issue?
Thank you very much!

Did you delete the newly added device recently? If so you would have to add the device to the network using it’s zerotier address (not its IP, but the address that is similar to a MAC e.g. 5fc3d178bc) in ZeroTier Central and then authorize its connection to your network.