Might be, might be not. It may be an illusion caused by the corruption.

But I agree, copy (not move, as moving involves deleting i.e. writing which may exacerbate the problem) stuff you want to salvage somewhere else and then just reformat the partition (tap and hold in File Manager until the option pops up). It is by far the easiest and most reliable method. As a bonus, it should also find and mark bad sectors