Transaction not yet indexed

2C21AGTC6w1zTNE3p5Pi5RuQYt7Xe3MTzr1kXABLTLBWvhqBahMC6hPKzzLogbZ94P2ekvk9atCX82uqBbE916dE

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