Physics problem

Im making a dominos thing but the dominos always bounce back to being up right. even if i drop one it will always pivot from the plane that it falls on and will bounce back to up right position even if it land flat on it side. I have physics on bullet gravity on 9.6 acot dynamic ridgid body all enabled on the dominos the bounds on the dominos are all convex hull polytope. any idea what the problem is thanks. Sorry for all the posts i’ve been making.

I had the same problem in a old project, my old bowling game =/

Try settings the bounds to cube.