Transaction not yet indexed

mMEt4HtSuUJLbiSwLRB62R33gS9csCFwHAvbzxR9zjqXM3YeU2DbTi3SYqJzSDeF77ZDRDeurvptSypKFo5r9D2

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