Shapes in preview look way different than they should be

[elhassan.t.s]

Shapes in previews look way different than they actually are. There are no extra elements all the sizing is perfectly stated and should be circles. But then in previews it changes completely and i dont know how to fix it.

[shpak.serhiy]

Make those elements fixed width.

[cmarchan]

Also, make sure the groups are perfect squares and their radius are set correctly (the roundness setting should be half of the width or height of the shapes)