Transaction not yet indexed

668Uc2MGA8b1YZERcgDeDho4j8Ffdf4MEDUt93nrHg49Wdr28NZyX4Jg9zyaLLdac2SAuLY2ad4kZHqtLpe5v442

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