Android Package APK Lighting & Assets Disapper

Hi, looking for some help for an Android packaging issue. When I run the app via the UE4 launch it installs and runs fine on my phone, but when I package it to the final APK, uninstall the launched version from my phone and install the APK all the lighting and assets disappear. The main menu will load fine, but the game board is gone as well as the lighting. I’ve packaged it many times, and tested it on two phone both have the same issue. I also have the same issue when I download the Alpha APK from Google Play Store. It seems to be an issue with the final packaging. I’ve checked all the setting in Android etc. It builds fine, I have key store all that is done. I set UE4 to compress the APK file to reduce the size. Seems to be only in the compiled/package final APK. Any ideas or help would be great! Thanks!
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Does anyone else experience this when packaging a game to android apk shipping mode? What happens is the game does not work, it works great on the launch, but when it’s built to shipping and then installed on the phone via the apk it doesn’t work.