【BUG】 [Important] UnitySynchronizationContext Freeze all async callback

https://fogbugz.unity3d.com/default.asp?1128561_4pg5198skv1051dm
(Case 1128561)

1. What happened

When TaskCompletionSource.SetException or throw an exception in async method, all async callback frozen!!

2. How we can reproduce it using the example you attached
Write an async method and throw an exception.

 

It has not been fixed at all, but it is marked as fixed in Issue Tracker. Most of the asynchronous code in my project now doesn't work. You must restart Unity every time you run it. Are you really taking this BUG seriously?

 

I really don't want to be furious.

 

Anyone noticed here?