Transaction not yet indexed

u21fQbVdK9dDQcFv2YDVRNJQqp6MWS1x9YRjb259qqeNE6DAMVreNMvzafXiYCCn6AwhGYRsRYgxFcocgEvuUo7

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