I am trying to add a background overlay to a popup I am creating in a collection list. It works fine in another site I did. But this time, I am using Finsweet and now it glitches.
When I make the layer fixed to cover the whole screen, it totally glitches Webflow itself. The controls disappear.
Copy your whole construction to another page and disable the Finsweet libs. Verify your CMS-based popups are fully working first before you add that layer.
If they’re working fine and Finsweet load is “breaking” them, than it’s likely you’re using interactions-based modals and the attachment points aren’t getting setup.
There’s an option in FS load to re-initialize interactions when new items are added to the page, you can try that. Otherwise you’ll need a different modals approach like GSAP or custom JS to sidestep your conflicts.