If I make a rectangle, add a drop shadow effect, change the angle value to something while keeping the Use Global Light enabled the data returns the default 90° instead of the new value.
I tried to combine different drop shadows and angles on multiple drop shadows and it looks like the angle doesn't overwrite the value when the Use Global light is enabled.
If multiple drop shadows are added with the Use Global light disable the angle value is being saved but once the Use Global light is ticked it doesn't get the value.