Transaction not yet indexed

MydHS5wzDULpcQKLKdrtQQzrDgjhjkHuuARFSeFCSF5qH298ifNFFyqWBWBGxJfQzgf4gT4tc5JAXP91F9Uiu1Y

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