TypeError: Error processing argument at index 0

[Till]

For a few of our windows-(10)-user it happens sporadically that they end up with a "x":null in their window-state.json like:

{"width":483,"height":681,"x":null,"y":48,"isMaximized":true,"isFullScreen":false,"displayBounds":{"x":0,"y":0,"width":1280,"height":720}}

This prevents the app from start until they manually delete/fix the json:

Uncaught Exception:
TypeError: Error processing argument at index 0, conversion failure from #<Object>
    at TypeError (native)
    at validateState (<APP>/node_modules/electron-window-state/index.js:47:34)
    at module.exports (<APP>/node_modules/electron-window-state/index.js:155:3)
    at createMainWindow (<APP>/src/main.js:26:25)
    at App.<anonymous> (<APP>/src/main.js:58:18)
    at emitTwo (events.js:106:13)
    at App.emit (events.js:191:7)

I think it's the state.x = null; in validateState() that should be state.x = 0; or state.x = undefined; !?

Versions

• electron 1.3.10
• electron-compile 4.0.2
• electron-window-state 3.1.0