Transaction not yet indexed

mb9dAQ6WA2eQ8SvRJcnAAdMtucLMJSYE8UJHo5m3DJbY6X3nCLeZz6EW8pJVYurTY6RD5JxyUEGh4p65TTH5Pt4

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