Transaction not yet indexed

Mmvk821nbJqCJbMSENAPYtHzXENSNNY8e7B6WKA8GSRgVFWtcggjuSNgvFPxTgWS1gQ2zv777Pt8tTugXR7qR4P

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