Transaction not yet indexed

21o6JTYa3RTKNZCPH8yGdxQcbvaDoJBUbaGPCMGmj1UYXhEQg48keyZyLmPNQgN3tffgV8iJJBvPAe9T7pNm3fbJ

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