ios - xcode 6.2. view controllers greyed out, locked -


i have xcode project buttons , other objects in it. objects greyed out in view now. project still compiles , shows buttons fine. saw posts using auto-layout, changing size-classes, , modifying ib. whenever make of changes, lock icon shows on screen , nothing changes. can go old version of code, i'd rather find out fix issue.

what doing break it? exploring through different xcode windows , views, , don't know when viewcontroller objects became affected.


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