Assets Does not Sticks to my main object(ball), but Default GameObjects do!

Unity Engine
1

Hello everyone!

it’s been 5 days that i have an issue and i can not fix it yet! :

I made 3 different Categories and I made 3 different Cubes and added them to the Category, it sticks to the Ball and it works fine! (based on my Script!)
but when I add an Object from an asset , It Does Not stick to the Ball!
Please Check the Video Down Below, thank you so much. size = (5.72 mg)

v3bod

and some times i have this error:
Triggers on concave MeshColliders are not supported
UnityEngine.Collider:set_isTrigger(Boolean)
StickyBall:unlockPickuptCategories() (at Assets/StickyBall.cs:65)
StickyBall:FixedUpdate() (at Assets/StickyBall.cs:52)

2

Had a quick google and this seems to be an issue with the mesh collider. You could try using a primitive collider on the stairs, or try ticking “Convex” on the collider.