Errors/Chain errors
InvalidVotingPowerEmaAlpha
Check the argument values against the operation schema
The alpha passed to set the voting power EMA exceeds 10^18, which represents 1.0. Check the alpha argument to sudo_set_voting_power_ema_alpha; it must be at most 10^18, and the current value is in VotingPowerEmaAlpha per netuid.
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 InvalidVotingPowerEmaAlpha.