Transaction not yet indexed

ex21PzvWcBgJtXe2zormwWEmpxpxWzMMp4vDN2JhrvPo5VFhK5cGPkMv9iNp8TARFPpDbb7DF3GXqV9fxAZUD4J

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