Transaction not yet indexed

RkMB6fjPwxndKXzryj3CDvKm2a8pD9pZQApCS6ccHQpJWXPnguQZDkBCqBj4RvYNVUSKgWoWRCyTkCsXXZQrExZ

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