I imported a file in art studio pro which was made in photoshop. It was 335 MB with about 50 layers. I observed that everything is working as it should but the adjustment layers even though present are not working. Procreate, Infinite painter, sketch book etc cannot even open that file. But clip studio paint for iPad not only opens the file but does it a lot faster than Art studio pro and adjustment layers are also working fine in clip studio paint.