New Terrain ignoring collider

Hey guys,

I am running Unity Version 2019.3.10f1 and I am currently building a 3d game or rather in the works of doing multiple smoke tests in order to redo and create the real version.

I have been working on a Terrain adding in test grass, trees, mountains, and a path. Today I decided to add more terrain detail so I did what I usually do with the following steps.

1. Click my terrain
   

2. Pain Terrain

3. Raise or Lower Terrain

4. Choose my proper Brush setting all the strength, brush size, etc.

5. Paint a new mountain into the scene.

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Upon hitting play my player goes right through the new mountain terrain I just painted, however any old existing mountain's and formations my character can climb just fine??

I looks like the Terrain Colider does exist otherwise I would not be able to climb my other mountains and terrain. Any ideas??

I added example 1 where it works, and example 2 there it is failing.

Thanks! Nathan Overlin