Transaction not yet indexed

a21cppKFKFGTEEimLcynmeCYfmQteSFLpRAUiCQre3d64Ge5pwDfUVx7nbAHvmzhGfk1oGjt3UcvCy5XeWKLwz8

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