Transaction not yet indexed

MNb8hYTMMspWB5bqB9XExFNMw4fmXApSGsMd8k5tp8yufWEypjkBdG3qGxtCFdBmiST31WbpCi2Sq6mwBKkTctC

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