Hi,
When i set the tab headers to be on the left it messes up the layout of everything in each tab.
So if you put the Counter component in a tab and set HeaderPlacement="HeaderPosition.Left" it comes out like this.
But if you set the tabs to be on top then it comes out correctly like this.
This also goes down the render tree into other nested tab components.
It seems as if display: flex is applied. But also other css that renders incorrectly.