Transaction not yet indexed

21USfqEXuPFTpa1bpX8jKJzCBcmcbL5uWmRm8EBXPCeLMRsvmUppYvb9aQetYv5VbiGQFTBB28AJ7PZEj6KxDwH8

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