(ME3) Endgame Glitch Help (Spoilers!)

Hello!

I'm at the beam-run portion of Priority: Earth, and I'm having the weirdest and most frustrating glitch. The first part of the run is working fine, as is the scene when your squad is evacuated, but after Shepard gets knocked out and wakes up, I seem to be end up way, way out of range of the actual beam. I know how the scene is supposed to go -- you wake up next to it, stagger towards it, etc. But it spawns me so far out of range that the beam is just a blurry shape and there's no ground to walk on, and I always end up dying before I make any progress towards it. A screenshot is attached.

I've tried searching if anyone else had this problem, and I'm not finding anything. I tried validating my game files, I tried uninstalling and reinstalling the entire game, and it hasn't helped at all. I do have some mods (although I think the only one that could possibly alter the final mission at all is Audemus' Happy Ending Mod), but even after uninstalling all of them and replaying the mission from the beginning, I'm having the same issue. Does anyone have some fixes or suggestions? Even just some work around like a way to teleport to the Conduit or skip to the next scenes aboard the Citadel would be amazing. I really just want to experience the last hour of this game.