Cine Camera Focus Doesn't Respond

I am aware someone else has asked this before but I have tried changing focus method to manual and track and turning off smooth focus but it still doesn’t update live. I do not know if the changes will be visible during rendering but I need to know what it looks like before rendering.

There were two fixes for this that will be available in 4.16.

The first, was that the focus method couldn’t be changed from circle dof. The jira for this is: https://issues.unrealengine.com/issue/UE-40621.
The changelist that fixes this is #3364865

The second is that the camera component wasn’t updating live to allow for smooth focus changes. This jira for this is:
https://issues.unrealengine.com/issue/UE-44105.
The changelist that fixes this is #3398916

Also, just in case, make sure you also have “Realtime” turned on in the viewport if it’s not already.