Transaction not yet indexed

a5a21XSVHTvpyNTJpHtBiHqjqD5HBmMbCTq2JVB5WsLBnksFQpRu1cr7tuQKouGrqbu7dEQLap7upB8DvXWQXZk

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