It's hard to quantify exactly what's happening here, but I'll see what I can do. I have a 2016 MPB with the touchbar, which has the 'esc' key there as well. In Factorio, *sometimes* the esc key doesn't work, specifically to close inventory and detail dialogs in-game. Eventually it works, but it's pr...

For what it's worth, I'm seeing this too. 0.15.6 running headless on an AWS instance, with a Mac client connected. The world is in peaceful mode, but I keep getting biter attacks on my mine. I'm not sure what data you'll want for this, but I'm happy to provide.