Here we have our first look at a beta build in progress by the Retropie Official Team. I feel honored to test this and share it with the public and know first hand how much work goes into building a base. Here’s a brief look at some of the features and what to expect going forward. There are some issues with this current build, im sure they will fix those. we ran into the same problems. I couldn’t get any of the games to launch even after rebuilding the cores. I didnt try mame or mame2016 because they each take 2 days to compile from source on the pi.