Multicam clip showing up black

I have no idea what is going on. I have worked on this timeline for several days without any issues until this morning when I opened the file back up. I created nests of each camera angle and then nested all 4 angles to make a multicam edit. This morning, however, camera 2 is showing up black. When I click into the specific nest, the file on the timeline has hash marks going through it, but I can see the file in the bin/project monitor. I have no idea what if anything would have changed, but even re-loading an autosave file from the day before the issue persists. See photos below and thanks in advance for any help!