We've just released a new update that includes a bunch of bug fixes and improvements for the app.

We've also restored Swipe to reply/forward functionality on Anniversary Update, as this is going to be the last version of the app to support this specific version of Windows 10 as it has been released in 2016 and it is no longer supported by Microsoft it since April 10, 2018.
This won't impact most fo the users in any way, as they're running already newer versions of Windows 10, so there's no reason to worry: this change allows us to stay up to date with latest technologies and to focus on improving the app even more.