I can't say 100% that it is a console bug, but I can't imagine it is anything other than.
When I export my game, the game as nw.js runs nothing like in previews sometimes. I can export the exact same game twice and get two different results. One will be super buggy, variables all over the place meaning players die at the start of levels, and another will work like the previews do. Sometimes It takes as much as 3 exports to get right.
Recreating the issue is literally just exporting a game to nw.js I imagine.
I use Windows 10 and the latest version of Construct 2.