Red Zigzags Lights above Glass Object [RESOLVED]

It has to do with the items you cloned them from, I think it's the unlockable glass cases from GTW (possibly some other items too, connected to museums or the police career, maybe?), and the lights are laser lights that turn on in live mode. Had some issues with these for some objects I cloned once...

You can fix them by changing the tuning to match a different deco object that doesn't have this issue - just in case you ever have a similar problem again.