I love the addition of the 1.43 aspect ratio IMAX theater, but I noticed most of the available content that is 1.43 is pillerboxed to 1.78. Some examples include The Dark Knight/Dark Knight Rises 1.43 fanedits, the Oppenheimer 70mm Trailer, and Zack Snyder's Justice League (which is 1.33 pillerboxed to 1.78 on the Blu-ray).
Unless there's already a way to crop in Skybox, and I'm just blind, to properly watch these in the IMAX theater you'd need to re-encode and crop out the pillerboxing.
