Pak Files Not Holding Reflections

I’m fairly new to Unreal so I’m not quite sure if I’m posting this question in the right section or even if the my terminology is correct, so I apologize in advance.
I’m working on an interior kitchen and I have my BoxReflection working in my project scene, but when I create my pak file I’m losing my reflections.
I’m wondering if any had these issue before and if so, how did they fix it.