Transaction not yet indexed

iSTx6ewufwcpafgef2sKqRFEAj2tq6A7fARBuy7gyhGLwqEWPMeme6m58Fv517mDFNSQq7ZHXDGkGHq7A2CbHyv

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