Are you also coasting prior to shifting? I actually had a problem on my Raleigh going from the small front to the big ring. It wasn't all the time, but I noticed that it did happen after a period of coasting then beginning to pedal so I could shift gears in the front.

It turned out the freewheel was not freewheeling as good as it should and the chain had a lot of slack just made the chain flop around. It even would cause the chain to come off if I was already in the big front and coasted then hit a bump about the same time I started back pedaling.

High limit might be out of adjustment. But I seldom have to mess with limit screws once set.