Transaction not yet indexed

66Stmk9pUTfc354sBb2U8vk1bW1upzxjx1CvPc3AjzNAgg6L2j51r2pK7TQpSf1dhJMBaybf9xhEPWHiEABXxrp2

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