As per the reply in Post #4507, there is currently an issue with the Routing Rules Engine for certain Fares. If there are any particular one(s) you are interested in, please feel free to PM their details (city pair/carrier/Fare Basis) and we will look them up for you.
KVS - Thank you. I should've been a bit more polite in rephrasing my question to asked if the issue had been fixed yet
Thanks again for all you do for us!