Background image doesn't load on some computers with specific title

[nicolepeverley]

Our team has noticed an issue with the background image not loading on some computers when the dmg title is set to our app's name "Shift".

For unknown reasons, this issue doesn't seem to happen when we remove the "i" or add anything including a single space after "Shift". In our testing, the background image loads as expected with the following titles.

• "Shft"
• "Shift "
• "Shift 8.5.0.0"

Here are the contents of the appdmg.json file that causes the issue:

{
  "title": "Shift",
  "icon": "shift-logo.icns",
  "background": "dmg.png",
  "contents": [
    { "x": 448, "y": 344, "type": "link", "path": "/Applications" },
    { "x": 192, "y": 344, "type": "file", "path": "Shift.app" }
  ],
  "code-sign": {
    "signing-identity": "..."
  }
}

On only certain computers, the background image doesn't appear as seen below.

[Laguna1989]

Same issue here. title seems to be very picky about what chars are allowed.

Does not work:

• "Chameleon Installer"
• "chameleon"
• "installer"
• ...

Does work

• "plugin"
• "test"
• ...

It is absolutely not easy to understand why there are issues with the image with some names and not with others.

Ideally the title would not affect the image at all, but I would at least hope for a massive warning in the log if something goes wrong.

[Laguna1989]

It is not just the value of title, but also the name of the image. E.g. background.png is a bad name, while bg.png seems to work. Either that or some really strange caching issues going on