Transaction not yet indexed

5u21BUQEmUrUFc541tZgMYf4LY35NbQwn4eGSTuZAVUgUHSBr1Q6CBuLvFpCBdoCrsXchpyyYdTh44njTEsFefee

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