Gotcha, thanks for the info! I tried that fix and it made the issue a bit more tolerable. Before, I had to click to set the wing, then grab again and cancel to get the spline to settle correctly. Now I just have to click once which is much less annoying. Not perfect – still won’t update in realtime – but much better.
I read in one of the bug reports that because of how the dependencies work, it might not be able to update until the thing it depends on (the location) has been settled with a click. So it’s possible there’s no fix for this particular problem.