Epilogue (Dying Light 2: Stay Human)

Good day. In the epilogue, while driving in a car, I forgot to walk around one location, left the game and rolled back the save. Now I can't continue the storyline, because the quest "Murder" in the diary hangs as completed. The fortress is not available. How to continue the storyline? Reverting the save does not help, because. in it in the diary and hangs the completed quest "Murder". Restarting the game didn't help.