Transaction not yet indexed

MSumCRQ8pCkak7krcvUe9wvqffQsMFmXkhGeMhDS1iSQkFLcSEA6p5qXQ7axxbg3cW3fVpYTqVBn4RzsKzAc7Ta

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