Transaction not yet indexed

AMu2fzg33hgWKkMfY4mSjUoeTaEb5f186D7TpvUhcQWYVzdK2dxaWUwuXURLU7LTLjG6Bpb17ufe3fVipppBMA8

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.