I've been crashing instantly today with the same session I was working with yesterday (I was using 5.96.0 all day yesterday).
I rolled back to 5.95 and the session works fine.
Something to do with Rubber Band maybe - my guess looking at the logs?
I do have about 10 tracks with clips extremely stretched and using Rubber Band.
Here are 3 crash logs:
https://app.box.com/s/evmh3emuyg0563mwi4zwnkg3ypdjdkjy