Re: If you want to switch from smart forlder to a specific account, you click on the account but now it closes that navigate page
Yes it does and it always did.
You just switched from smart folder to "some" account's message list, why keep the navigation drawer (side panel) open and in your way "in front of" the message list you want to see?
Re: These changes need to be rolled back.
If "hiding the account list" is not your cup of tea - you can turn this off in app settings -> look and feel.
But it has no effect on the nav drawer closing after you switch accounts / smart folder. It always did and it doesn't make any sense to keep it open.
Re: Worst update yet.