In truth, I never did. With 4.6 released and the new method of making HUDs available I decided a best practice would be to use a HUD as the menu system rather than a map. It saved on space and it was relatively easy to implement.
Sorry I couldn’t give more help - I had to work around the issue.
I DO think that the problem is centred around memory cards. Since many devices, like the Nexus 7, use a virtual memory card rather than a physical one I think there is some issue with addressing the memory card from Unreal when installing. I didn’t have a memory card in the Galaxy S4 I was using either, and never got around to getting one. This could be the crux of it all…but it’s a guesstimate without evidence to back it up.