Stuck at "Loading... 90%"

I was working in a poly-heavy document and when I tried to save Dimensions popped up a "There was an error saving this file..." I figured it was due to it being very VRAM heavy so I shut down every app in my computer besides Dimensions. It could be saved.

But now everytime I try to pop that save file up it gets stuck at "Loading... 90%" without moving forward. It is a document I invested hours in and would love to get it back. This is not the first time it occurs. At this rate the 7-day trial has convinced me not to get this software until it's much, much, better developed and the basic troubles are fixed.