Transaction not yet indexed

668HzzSWrWufsZLWxhawPP581cRWeLab3E843yMj2CXJfxjDov7RYSFDD5ffe8bBT2gFtd5BugLWtD9Jh1vDm965

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