New Audio Engine: Quick-Start Guide

Hi guys. Thanks for Synthesis, its great. I have been thinking about procedural sound generation for some time and now i can play with this. Great.

I made a project where i exposed some synth parameters to GUI so i can quickly see how things affect each other. In editor it works fine.

I thought i would share it with others, but packaged project looks like this:

Is problem on my side, or is it 4.16 preview thing? Any ideas?