Transaction not yet indexed

i21uQ3JB2edDKRwaek9YixYE4TtHbFswyturnmQ8HPkVTNfiNAPchMAbRHZv8dFXPtw6bY3ZnSSPq3rNtjDNXB9

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