Ah ok, that makes sense. In reality I guess I could easily use the default material profiles and tweak like you do, however i would prefer to keep being able to use different print profiles as then its easier to switch between them. Unfortunately as you have found UM development have a bad habit of messing this part up and quite often upgrading the Cura version spams custom profiles and sometimes, most annoyingly, it just messes up a few settings rather than them all !!!!!, so its really hard to detect until you see something odd in the print !!!