Hello Everyone.

I'm posting to this thread, Why, Yes you guessed it. I am having or was having this same issue. I read through all of your comments and of course, tried them all. I believe someone mentioned about the perspective which works for a few times. Then someone mentioned that an imported component may be the issue. Well, I found that the imported component was the main issue. It seems that particular component did not work well with perspective turned on. Once I deleted that component drawing worked fine.