Transaction not yet indexed

u55PmpuCBmJpdcdMwx19XjCJBCLxJrwfbFuqC4G2B1M2G2kx8UVYps2WKcWb5URnLJhPJeq9ypm2knPXRVLTmK2

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