Few problems with a capricious pin which have decided to be a roly-poly

[Nihil]

Hi ! After I gave a go to the physic simulation on my “beautiful” bowling ball scene, I’ve enconterd a few… issues. Mainly than my pins apparently decided to become roly-poly for some reasons.
I’m 99% sure that the issue has to do with me being stupid but I can’t figure out what’s going on.
Here’s a link to the actual state of my simulation :

Background info : I’ve created the pin mesh following the course and here are my physic settings for the pin(1) and the ball (2):

Thank to any knight in shining armor who could help me with this diabolic roly-poly !

[FedPete]

What is the point of pin gravity …?

So, where lies your pin origin point, the point where Blender says this is the gravity point?
Move origin point to center of object.
Now it lies under the floor … pin waving at you

[NP5]

Welcome to this site.

Great job making one of those children’s wobbly toys that will not fall over! How would you do that deliberately? Therein lies the route to the solution.

solution

Basic centering of the weight of the pin, or any object.
Object menu; Set origin; Centre of mass(volume).

[Nihil]

Thank you ! I kinda forget about pivot point, sneaky little dots. Makes a lot of sense know that you mention it !

[FedPete]

Yes, that’s why I was a little cryptic!
This ‘funny’ problem, pops up sometimes. You are not the only one.