I have reported the issues to the engineering team to investigate but I do not have a timeline yet on a resolution.

Thanks for bringing this up. I have shared your post with the engineering team to take a look to determine why this is not working correctly.

That's strange. Have you experienced this with a number of different InDesign files, or just one? I did a quick test and I'm not seeing the problem – the article sizes from both CC 2015 and CC 2017 are the same.

You are doing it correctly. You should be able to publish an article without adding it to any collection, then use the navTo as you suggested. Internally we call these "orphaned" articles.If the app is failing to download the article in this context there may be some failure with the publish process or in the viewer. I did a very quick test with these conditions in my preflight app and it worked. Could you try unpublishing and publishing the article?

Tommy, if I recall correctly, the app loader compares the internal version number between the current and new update. If the version is 230914, then you'll need an app update that has a version greater than that number. I'm checking this out and will follow up with you directly.