Some blueprints not working on Packed version

Hi guys. I have an architectural walktrough. It includes the ability to turn lights on and off, and highlighting them so you can see they are editable during the game. I use a LineTraceByChannel to highlight the editable lights and it also opens a branch so the light reacts to mouse clicks. It works flawlessly inside Unreal in editor, new window editor and as standalone. However, for some reason, there are 3 lights that doesn’t work on the packed version. It’s the last thing I need to sort out before finishing this project so it’s a bit frustrating and I will appreciate any help.
Here are some screenshots from the maincharacter and level blueprints.