State tax filing

Have you guys looked further into this problem? My TurboTax for Mac appears to be messing up the PA-40 Schedule E calculation, changing rental losses to zero so they don't offset the gains of other properties, even on the same page. Can you confirm that this is a bug? If it is it has been going on for over 10 years and has cost me thousands of dollars. Clearly I have to pursue this until it's clear what's going on.