Thanks, so yeah changing to another material (A PLA that I have added) repopulated the profiles in the dropdown menu, I now see that when I select other materials that I have added such as ST-PLA or PLA+ they are highlighted in orange when selected from the dropdown list. Is this simply happening because I have effectively created a new unrecognised material by adding them as ST-PLA & PLA+?
How would I go about fixing this? should I simply re list these materials as PLA?
Another thing I notice is that Cura seems to lock up for 5-10 seconds every time I either change between materials or print profiles, any idea what may cause this?