Transaction not yet indexed

21ZULFMNMCfTJ8TLwR3XBVwHa731EZtmm2yo8Mr6q4MdnzQutkfMZ8PP5ZGhJD7dtnfJsRTaVumNJFGRwCUKQXR6

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