Rush crash - grey screen

Hi

I've had two awful days with this programme. I edited a video yesterday, got told it didnt save for a while and to close/reopen. Then I find that the project is corrupted, after 4 hours with my IT team. 

This then stopped the project select screen from showing the project tile images. So I bit the bullet, deleted my project and restarted its assembly, after Rush decided to try to delete my assets file multiple times...

Then exactly the same thing happened when I was 75% of the way through the project. 

The project still shows and it opens on my mobile without the fonts loading but I just get a grey screen and the only way to get out of this, is to start the tutorial. 

I never once lost a project before this last update. Now its' happened twice in two days!!! I am very very annoyed!