Could you please try to package your project using Unreal Frontend? You can locate it within the engine by going to: Window > Project Launcher
Once you’re in UFE, click on the little + button that’s at the lower right side of the screen and create your own custom profile.
Another thing you can try is to open your config file at Engine/Saved/UnrealBuildTool/BuildConfiguration.xml and set bGeneratedSYMFile to false.
Let me know what happens, upload any logs obtained. Thanks!