Once again, great support from Apple right here. I'm facing the same problem, does anybody know more about how to fix this?

Hi, I would like to know the same thing. I wrote Apple support 3 times about this, all they ever do is send you generic links to their documentation which solves absolutely nothing. Good thing we all pay for being developers and have zero support. Anyhow, did you find an answer to your question, Narendra? My apple-app-site-association file has been updated months ago, and iOS doesn't recognize any changes. What a great framework.

Any more news about this topic? In-App-Linking doesn't work with our app at all, the file is just never being updated and the "Open in App" bar therefore not shown, wrote Apple support twice and all they do is send generic documentation links. Great thing to have to tell our clients that Apple developer support basically doesn't exist, but hey, who would expect support for something that's free. Oh wait..