Portfolio filter is not working

Hi,
I am using Sydney and when I set up a portfolio, the filter is not working.
site: www.biozwembad.com

What I am doing wrong?

Hello there,

What will happen if you rename the filter item name to Project S and C instead of Project S&C?

09

Regards,
Kharis

Great, it works.

Another question:
Can I put spaces between the thumbnails?

Try adding this CSS code to Appearance > Customize > Additional CSS from dashboard.

    .roll-project.fullwidth .project-item .project-inner {
      padding-left: 5px;
      padding-right: 5px;
    }

Regards,
Kharis