Edge light

Check notification>brief pop up

Or Clear cache of edge lighting

Please go in accessibilities -> visual enhancement and turn of remove animations....

Further if you have removed animations from developer mode also....then you have to revert that settings .....just keep all animations on and it will work without any problem....

If solved mark it as solution

Dear Samsung member,

Greetings from Samsung customer support.

Thank you for sharing your concern. We acknowledge your query and apologize for the same. And please follow the easy troubleshooting steps which might help to solve the issue.

Note: Edge lighting is on by default.

Try Edge lighting when you’re in the zone and want minimal distractions. From Settings, search for and select Brief pop-up settings, and then tap Brief pop-up settings again.

Maybe you only want Edge lighting to activate at certain times to help save battery. No worries, you can customize when it will appear.

Brief pop-up settings screen with a list of options on a Galaxy phone
Edge lighting style: Select your preferred type of Edge lighting with color and effect options.

Color by keyword: Add important keywords and assign colors to receive personalized notifications.

Show even while screen is off: Enable this option to show Edge lighting even when the screen is off.

In case the issue still occurs. Please register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Ask questions).

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support