ActualNine

I actually didn't have to redo the normal Duviri game modes after the hotfix, but that's because I had done The Duviri Experience before completing the others. Depending on the order you did the nodes, The Circuit and The Lone Story may not have been marked as complete, which is why you'd need to redo them (although fortunately that bug has already been fixed, so this'll be the last time you need to play them). I understand that many players are upset about the inconvenience, but let's not overexaggerate how much of a problem it is. The Lone Story takes less than half an hour to complete for the average player, not 4 hours. Enemies are also very weak to the point that even loaner weapons and loaner builds easily have enough firepower, so you don't have to worry about being affected by unlucky loadouts either.

Did you read the patch notes? They're already aware of that issue and have stated that they're currently working on having the pop-up message specify which missions you still need to complete in order to unlock Steel Path Duviri. This change will be implemented in the next update.