Transaction not yet indexed

mPmn3DjrsxMm9R51rRNrD3jaYGLtAHqaVbvAMT51dnUTtLUQeBU1aqbtUcmpcvvPXMgoAMBZSUxcEdzHijZB2X5

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