Transaction not yet indexed

53HeLCNUDAjiSv5c1jk4E4PCDtekNqnpKdtD4JsjqkA2gm12cqunwvcAFBXm6khoFqSyV4AiN3fkZFbvkUPTiASM

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