AR Resource Group Problems

I'm trying to add an AR Reference Image to the ARKit Image detection sample project in Xcode 9.3 beta 2.

I drag an image to the AR Resource Image slot, but it's content.json won't include the filename:

{


"images" : [

],

"info" : {

"version" : 1,

"author" : "xcode"

},

"properties" : {

"width" : 16.875,

"unit" : "centimeters"

}

}

Adding the filename manually seems to work in the sample project:

{


"images" : [

{

"idiom" : "universal",

"filename" : "LaunchScreen-iPhonePortrait.png"

}

],

"info" : {

"version" : 1,

"author" : "xcode"

},

"properties" : {

"width" : 16.875,

"unit" : "centimeters"

}

}


Edit: This seems to be a bug. It works correctly when you don't create an AR Reference Image slot via the context menu, but directly drag the image to the Resource group.