Quick fixes for the problems people meet most often.
This is almost always an old cached stylesheet. Follow the three steps above. If it still differs, a theme or another plugin may be adding its own styles to the same elements. Test with a default theme to confirm.
Bright Addons marks its scripts so that common speed plugins do not combine or delay them. If a widget still does not react, exclude the scripts whose names start with bapro- or bright-addons- from JavaScript combining and delaying in your speed plugin.
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Conditions are checked on the server each time the page is built. If a page cache serves one saved copy to everyone, conditions about the visitor (login, role, device, cookie, cart) cannot change the page. Exclude that page from the cache, or let the cache keep separate copies for logged in users and for phones.
Check whether your device has reduced motion switched on. Bright Addons respects that setting and shows a still version.
Do this on a staging copy if the site is live.
Contact support and include your WordPress, Elementor and Bright Addons versions, the page address, and what you expected to happen.