Maybe what’s happening to you it’s what happened to me at the beginning where I worked in perspective view a lot and things got out of whack easily. When you move things in the 3D viewport and in perspective mode, you move it by how your view is aligned and then you move the camera and find out things don’t match from another angle. That is why you have to get used to modeling in orthographic view and change from top to bottom, left to right, front to back, when needed. Things will stay in place that way and wont be skewed when you look from another angle.
