Halo: CE - split screen, mission stuck bug

My wife and I have been playing the split screen campaign for Halo: CE. When trying to rescue Captain Keyes near the terminal in The Truth and Reconciliation mission, all doors are red besides the way back, and we can’t progress in the mission. It works in solo. Any solution to this?

probably glitched, have you tried restarting the mission?

Did you find the solution to this one? I’m stuck in the same place, restarting mission did nothing