Waste of money until fixed, BROKEN APP!

So I tried out the free version and it seemed fine. After the first update it began to run slow, especially with anything of decent size. Even section views were extremely slow and laggy. Now when I try to open a file nothing even comes up, and for some reason it swtiches them to .eprt when viewed. This app is absolutely useless until someone actually gets it fixed. Thanks for releasing a buggy, broken and useless app Dassault..... Not deserving of a single star.

aouellets about eDrawings Pro