Corner components preview is different from exported file

I’m experimenting with corner components.
A round corner filter applied to instances in the export tab affects the preview (corner component gets wobbly) but the exported font looks okay. Can I ignore this, or is something wrong here?

If the exports look fine, no worries. The preview panel works slightly differently and doesn’t always show corner components correctly.

Also, Schermafbeelding is a wonderful word.