Cutting hole component, I still didnt get it

[pmq888]

I created this cutting component, sometimes it works but sometimes no…
what is exactly the rule to make it cut?

[mihai.s]

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Window to Cut Opening on a Face | SketchUcation

When You SHOULD (and Shouldn't) "Cut opening" with SketchUp Components

SketchUp: Creating Cutting Components

Simon, here are the steps I would use to make a hole-cutting component from your sinks. Select all of the geometry. G to create component. Set the Glue to: direction. Tick the box for Cut Opening. It’ll look like this at that point. [Screenshot - 2_3_2020 , 11_56_50 AM] Click Set Component Axes. Place the component’s origin where you want it along the bottom of the rim of the sink. I chose the midpoint along the front edge. [Screenshot - 2_3_2020 , 11_57_09 AM] Set the direction of …

[pmq888]

selecting it from the components tray seems to work always