what is this four things in corner?

[Johan25609499oq6j]

after illustrator crashed i reinstalled the program and then i get these points in each corner of a cube, the problem is that when i change the size it becomes round like a circle. how do i remove this things in corner? it wasn't like that before the reinstall.

[Doug A Roberts · Accepted solution]

Those are rounded corner widgets. They are a normal part of the software.

If you want the corners to scale with the object, open the Transform panel and check 'Scale corners'.

If you don't want to see them at all, go to View > Hide corner widget.

[Johan25609499oq6j]

This things in corner was not the problem. the black "box" corners be like this when i change size.