I might know some other ways around.
Go to your Cinecam_MAIN_backup and go to Focus Settings
Go to Current Aperture which I see on yours is F 5.0
This is a shallow depth of field.
Shallow Depth of Field f 1.4 to F 5.6
Larger Depth of Field F8 to F22
Change the Aperture to something around an 8 or check the setting you have on your Cinecam_MAIN1 and compare. You should see the some blurriness go away.
Another way to see where your DOF is doing
Focus Setting > Check “Draw Debug Focus Plane” > Go to Manual Focus Distance and click and hold over the numbers and drag it back and forth should be able to see a purple guide on the map. That tells you what’s going to be in focus.
If that does not work then delete and recreate the CineCameraActor.
Hopefully, this helped, but If it’s still not working let me know I’ll run some tests on my end and see what I can come up with and help you out.