Transaction not yet indexed

21c3KZ8wde5mshCcbbWthvPGwRCL5MNWVMawH9LH8Z1FnvjpRA8xzHYPzSmWi2AgXEoSCnWWxSuSkh4TqUEE6kGT

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