Looks like the stator was just the intermittent hybrid AD problem that is being worked on.
As for the nozzle... it did not have an objective function specified, therefore it must have been defaulting to drag, which was zero because MARKER_MONITORING was empty, now you added something to monitor and puff, results changed.

So before the case was not testing anything 🤷 you have my blessing to do whatever you want, check if the new adjoints make some sense and update (good samaritan option), or blindly update, or don't modify the case, or delete it, up to you :)