Errors/Chain errors
NewHotKeyIsSameWithOld
Check the argument values against the operation schema
Swap_hotkey was called with new_hotkey equal to the current hotkey, so there is nothing to swap. Check the extrinsic arguments and supply a different destination hotkey.
Declared by the SubtensorModule pallet; it classifies to the semantic code invalid_argument.
Remediation
Check the argument values against the operation schema
The same explanation is available in the terminal: btcli explain NewHotKeyIsSameWithOld.