Transaction not yet indexed

EX3A18DhbQrfP1nPsD71BDcfbBfqZEquXmzrffTev7mTPA1msAovyLx4aA9QwEKVTMHyJhmkmZ2AA8PLgMa5yb7

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