Was V45 just pushed? It was crashing so bad on load, I had to reinstall it.
OS X 10.10.5
Nope, v45 was released on Nov. 3rdhttp://blog.framerjs.com/posts/framer-studio-v45.html
Could you specify how and when it crashed? When opening a file, BBoD etc.?
I'm on 44 now. Crash on File > New
Could you send your crash report to support? We'll sort it out.