Lights suddently blinking (off and on) in editor and in game

Just opened my project after an hour and for some reason, the lights in my level are blinking on/off. This is happening in the editor as well as when I run the game. I’m fairly certain I didn’t change anything. I’ll attach a video. Thanks.

What happens when you press G on the keyboard in the viewport (not when you’ve hit play)

Hey! I fixed it but I don’t remember how. When I hit G, all the icons for the actors disappear.

Fixed it, just in case anyone else has issues.

I had to change the engine scalability forj “Effects” from “Epic” to “High”, I have no idea why they start flickering the higher the quality on the effects.