Help my map is all grey

My UE4 editor window has evberything as a grey material looking thing, but when i testrun my game all the colors come back? also the skysphere still has color? what am i doing wrong?

you should post a screenshot so we can see whats occuring. given the information though it sounds like you activated one of the alternate view options. this is done by either by changing options in the show menu (i think its thats menu i odnt have unreal open atm) or by pressing certain F number keys. to fix this you either need to find the options and set to lit mode or press the f num keys until you find a view you like (i think f5 is lit mode).

changing it to lit did not help ? also heres a picture

changing it to lit did not help ? also heres a picture

Never mind it worked after restart, thank you!