Transaction not yet indexed

21C3vwRzKVEzH3VCUG8vtCNvsWb3J8YanZfdFU12ADqiebsH8dsMexWuPaFbzZ4VZJHRKHfkDJSJGsBqVFMYRTy4

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