Transaction not yet indexed

MpUDMdUT23cmUU8mPnUHNLBNrJa1vxVLyi7q7HTXFvb72hcxfNtEdApEkdy8KMxaDpZAVX8vux3dhEAppVwvLqP

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