Shadows of the past (Middle-earth: Shadow of War)

I understand correctly that if the first time I passed the task for silver, then everything is already there, will it not be possible to replay it? It's just that I ran into this on the very first test, and what's even more annoying is that I couldn't even refuse the silver result. That is, if during the task you didn’t have time to “get out” of it when something goes wrong, then that’s it, you won’t see gold, since there’s also no way to replay it? MB can I somehow roll back the progress or something else? It’s just that it’s been played for 3 hours already, it’s not like starting all over again, but what should I do if I encounter this at the 40th hour?