Transaction not yet indexed

21C6NfuTf2tZCcVb5R4L4NMvfVRsmCKciApMcMzbCAFiPgjDS7vFAWdvNvCscaCbChNngjyJ9PAmWfPkjpRHY7jD

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