Legacy of Dragonborn- stuck in Rkund-xbox series x

Got all three keys, managed to solve the puzzle and the crazy platforming room and now i can't go into Ruins of Kagaras Maze. I opened both grates and keep trying to enter but all I get is a loading screen with no flavor text or anything. Cannot load an older save because my last save was 15 levels ago with nowhere near enough relics to start the excavations again.