Transaction not yet indexed

21LuUnMGnhhzYF4fZTqsSQAf4g1WNmDvScEnCBEPgbcfD4PLEQnYcD6CMSXeYuPTLqpUmy44LHGXRHc14ERC4LZm

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