Both Window and Door handles are missing on plan

In the settings for my Windows and Doors, the handles are active, but on the plan, they don't show.

Solution

With the Window/Door selected open up the settings.  In the Floor Plan and Section tab you need to switch the default setting of Symbolic to Projected.

The Projected view gives a true-to-life depiction based on the 3D model's geometry and the current cut plane. In contrast, the Symbolic view provides a standardized, simplified representation that focuses on clarity and ease of understanding.