I’m still waiting for the update to reach my computer.
In my case I’ve been experiencing very similar behavior, crashes caused by memory leak, but I thought it was linked specifically to the Alpe do Zwift route, so I documented it in a different thread:
https://forums.zwift.com/t/memory-leak-in-alpe-du-zwift-on-windows/581284/5
Looking forward to check the update.