I don't know if it was that one, but one of those Edgar Kennedy scenes was cut from the film when I was a kid. This might be the one that was cut and they pulled it from another print for the blu-ray.
It probably got evened out as a process of the compression for DVD. They could have probably corrected it, but it would mean losing info at the edges of the screen.
Horsefeathers has always been a mess. It was cut long ago and the missing bits made it really choppy, especially the paperhangers scene. I was hoping they would find a better element, but apparently one doesn't exist. Animal Crackers looks great though, and the non dupey bits of Cocoanuts are a...