Transaction not yet indexed

mMCckJzK93tzErCFUtjTgn4XUED2NqddoB7ChWh7rAPQAA9eTPmWj8CtiA3DDz5CsACk2jwAVA9ywv1PgMExJJa

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