Hey Thomas,
Yes this is the intended behavior.
The layer order has 2 functions:
- The front to back order where the top is in front, this is what basically makes it a “Layers” panel.
- The DOM order where the bottom is first in tab index.
- Regarding sections, each time you add a section it adds in the front so a good practice will be after everything is visually arranged the way you want it to be go from the first section to the last and select arrange->bring to front. That way when you get to the last section they will be ordered correctly.