I've been working on a project and I realized that the master meters at the bottom of the editing screen aren't working. I can turn on the Mixer and the Audio & Master meters both work but the others don't. It's like they are frozen because as the track plays, they will intermittently flash and hold the value but that is it.

This only occurs on the last couple of new files I've started. On older files the meters work fine. This is not a complicated job, I've got one video track and 2 audio tracks.

Any ideas?