Transaction not yet indexed

2Ex21Fws6kmSidUcT6D2znFfum6e8SJs3oqVEssQnWGoVyzpVBW1dZkiSWmYdvsF6ZG7qoUw3KYgKVbrLn1kk2fW

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