Style changes not getting applied

When I change the color of buttons or icons, it shows up correctly in the preview but not on the live site after I save/publish.

I have tried to disable all caching. I have tried to change the color using custom CSS. I have tried with and without identical global button settings.

Nothing helps.

You can check the code. It’s the black button saying “PRØV VORES TILBUDSUDREGNER” on the frontpage. It should not be black. It should be orange.

I cannot figure out what is going on.

Everything worked fine yesterday before I updated Elementor and Elementor Pro.

The page I need help with: [log in to see the link]