Model Geometry Invisible

Hello, I hate for my first post here to be asking for help but I have hit a snag in a game I am developing. I have a ramp up to a bridge that is just not displaying right and I cant figure out why. I have ruled out texture and collision issues. Anyone have any thoughts?

Could it be that your normals are inverted?

Not quite sure if it was a normal problem but I duplicated the problem part, turned it upside down and the parts that weren’t showing up appeared and the other parts went away

In your modeling program, flip the parts that are inverted, then.

Alternatively, you can call setTwoSided(True) on your model in Panda3D to enable double-sided rendering, but note that this is almost twice as slow.

The second method worked. thank you