Please note that we've updated the Mount & Blade II: Bannerlord save file system which requires you to take certain steps in order for your save files to be compatible with e1.7.1 and any later updates. You can find the instructions here.
Are we notified in any way that the time limit is 10 years? I can't remember reading anything like this, it doesn't have the counter like other time limited quests do. Does it only tell you you had 10 years AFTER they pass?