[4.7.1] Very slow "Finalizing load of..."

Hi,
I bought Arid Desert from the Marketplace and then added it to a newly created project using the “Add to project” button. I then opened my project but when I try to load the levels of Arid Desert it is very slow and loading never finishes. (it’s been an hour until now and it is at 55%) To be more exact it hangs at “finalizing load” of different files.

I have a MacBook Pro 13" Mid 2012 with 8GB RAM and Unreal Engine 4.7.1

I paid for the Arid Desert package so I would be happy to be able to use it.

Instead of loading the levels it provides, try loading chunks of the assets by selecting a group of them and simply right clicking (Maybe click edit for good measure? That could be annoying pretty quickly though.)

Loading all the assets in chunks and caching them, and then loading the levels, might prove to be more responsive.