Transaction not yet indexed

mntEZWyKGCAHiuLDbQ1Aw7BFJ7mptcLkNw2SvXcRuS1GVXapKGRdmDPcDGCPRK3bPhuQBVEgzJr8DEw2DgWUyUY

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