Transaction not yet indexed

21n6tsAVsF2WML8nQmposTe9p6GU2CD6EkXFKvKKQEqaaZSzNYiMFT3ZzwdofTAcnvzQsUeUHcv4bjbZya9RM5CQ

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