We’re running 2.4.0.beta11 (cf0c6d5761). Topic muting is completely broken for us.
When I mute a topic in a category that is not muted:
It appears to work:
But then when I refresh the page with F5, the mute is gone, and it still shows up in the Latest view.
Is this a known bug? We haven’t changed our configuration recently, although we do update fairly regularly and are on the very latest version as of today.