Why do reflections in my packaged game look different to PIE?

Hey, could somebody please help me solve this issue I’m having. Basically my game is running fine after being packaged, but the reflections are really buggy.

I’ve posted a question with more information on the answers page:

https://answers.unrealengine.com/questions/320182/why-does-my-packed-game-look-different-to-pie.html

Thank you!

This has now been solved. More info on the answers page.