Transaction not yet indexed

MpEZ3JwSsxsYKk4C16CL2o87AF9g8Rcfw59aEPd4UkZW8NWf4i3ZSSimxk23gpMsB7sarjkXBy7SdWnKe2SN1wE

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