Transaction not yet indexed

ac26Fsh9iAgGunGqnLPpubt6FpF6aQH5w3AnERSb1TkWDU1Mmw2RpE1EAtBDmVMZdgAPYBinYHk1j7vYeyBH1Pm

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