Transaction not yet indexed

55USMisGjUvuZmE7bXePqo9bE5kS4NwnVJAdEVNQ8tMMY4mHAXyjT2SK8ppkrPyvKvKwpJE3WHGKJD4d8Yffbf15

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