On mobile, the cart reminder bar can sit on top of the booking popup and block your guests from completing a booking.
How to fix it. Update Conversion Kit to version 1.95.0 or later. From that version on, the reminder behaves much more quietly by default, with no settings changes needed. It shows once per visit instead of on every page, and it pins to the guest’s most recent cart rather than rotating between listings. By default it stays off property, search, checkout, and confirmation pages. It also steps aside automatically when the booking window or an extras sheet is open, so it can no longer sit on top of the booking process.