Transaction not yet indexed

PMb3Sd9hRtEpdUUN78anPiTRien2Na9DtXmJRWjpfTi5tEdCuUrGScWRjP7NsNuH8MBfCajGYHxLVbFzz3TYcp4

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