Transaction not yet indexed

668PE5t9TUCDk5FATtSEkz8LyTtF3fhrfvsXFCmR4Efa2ohn8c6WGnasToPd9GLiXY8j9GtFRvSLXKE1bm5FtySn

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