Hey there, so i have made this low poly terrain in blender that i quite like, but when i import it and play in studio it has these invisible parts that i cant walk through. I find this quite strange. Heres some screenshots:
![Screenshot 2022-09-22 at 21.00.50|690x399, 100%](upload://uX0mL4JIh
There are so many other posts on here about the exact same issue.
Basically the visually rendered version can be completely different than the physically rendered one.
Click on your MeshPart.CollisionFidelity and set it to PreciseConvexDecomposition and see how that works.
Big meshes with a small concave sections compared to the size of the enitre Mesh will give the same result as you see.