Errors/Chain errors
TooManyChildren
A chain-side capacity limit was hit; reduce the size or count of the request
set_children was called with more than 5 child hotkeys for a parent on the subnet. Trim the children list to at most 5 entries.
Declared by the SubtensorModule pallet; it classifies to the semantic code limit_exceeded.
Remediation
A chain-side capacity limit was hit; reduce the size or count of the request
The same explanation is available in the terminal: btcli explain TooManyChildren.