Ok it's like this, i have been playing advanced maps recently and i have completed 3 maps without cheats. So on the 4th advanced map, i had some difficulty so i decided to use god mode and i completed that level and i didnt realized using cheats would render the achievements. I was aiming for the fruit cake achievements and now i've completed 4 levels of advanced maps and the achievements is still unattained in my steam account but in the game itself it showed that i have completed 4 advanced maps but the achievement is greyed out. So is there anyway to reset the achievements or solve this kind of problems? I tried completing the 4th advanced map again without cheats but it doesent help. I really regreted using cheats on portal, *sigh*.
Expert steam and portal users/players, can you please guide me on this? any help is greatly appreciated