Half Wall options are too short for Medium and Tall Walls

For all wall heights (Short, Medium Tall) the only Half Wall options that appear are those correct for Short Walls.  If I try to use Half Walls with Medium or Tall Walls the height are too low.

The screenshot shows Medium Walls with the tallest Half Wall option (Extraordinarily Enormous Half Wall 4.75) which is leaving a much bigger gap between the top of the wall and the ceiling than it should.

Summary: Half Wall options are only correct for Short Walls, Half Walls for Medium and Tall Walls are too short. 

Edit By crinrict: Adjusted Title