Transaction not yet indexed

Upkp8SswtWuqsZRrAB26psuJaPEXtbHB4JWDfiHBpqGxmphDm2v19aKbK6kEC5spgFVbLP74ztSt4gUztcYQCu8

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