Unable to open project. Engine crashes after opening any assets Unreal Engine 4.10.1

I did make a new copy for the preview last night and didn’t have any errors initially, but I only worked on the project for a couple of minutes before closing it. I re-opened the project and was able to load everything without error. I read that it was a bad idea to do any substantial work on any preview releases though due to them being unstable. Will I have to wait for a full release before I can get any work done?