This is a simple but important fix - as we have recently narrowed down some of our crash reports and network issues to Unity's relay services being unresponsive in some parts of the country. For those who were experiencing the "crash after hosting/joining" bug, this should fix that!
It should be noted this won't solve connection success rates for people who have had trouble hosting (likely those with IPv6 addresses) - it just ensures the game won't outright crash when those connections fail.
Success rates should be similar to what they were prior to these crashes (they were more frequent today due to problems on Unity's servers today). So overall everyone should have an easier time joining games after today's hotfix.