I'm not sure but I sometimes thought that maybe Superman and definitely Lois weren't present when the All Star Squadron (JSA "plus") got hit with Karkull's "time rays"...
Both Superman and Lois were hit by Ian Karkull's chronal radiation (or "time rays" :-) ); in the story, Lois shows up in her 40's "aggressive reporter" mode, trying to get another scoop on the action the All-Stars (including Superman) were dealing with...