Why does the PMI drawn by the Hoops Exchange example Viewer show incorrect orientation or position, and why are some symbols not converted correctly?
Do you have the expected font install and accessible to the application?
The PMI text has a certain location and orientation in space.
The viewer you are using isn’t capable of changing the orientation and location of the text dynamically based on the camera. Think about the PMI as a 2D polygon. As you orbit the camera around the model (including this 2D polygon), you see it at a different angle and eventually you see the back side of the model (and polygon).
Mike