Transaction not yet indexed

MSt8i2Msc4tTsWDbNsjsnFkXaJvS7XkHhErAnN5Te19ZCKK45WQacoKefPMnwBMxy8Swb2kekSLZ9KbsQqDJkSi

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