I'm developing an Android app that utilizes AppLinks and Chrome CustomTabs to deep-link from a website to the app itself. This implementation adheres to the recommendations outlined in RFC 8252, ensuring that the app opening the Chrome CustomTabs is the same app that is launched via the AppLinks.

Problem:

While most users can successfully launch the app via AppLinks, a few percent of users experience instances where the app fails to launch, and the user is redirected to the browser.

Questions:

• What are the potential causes for this behavior?
• Has anyone else encountered a similar issue and found a solution?
• Are there any debugging techniques or ways to generate more detailed logs?

What I've Tried:

• IntentFilter Configuration: I've double-checked that the IntentFilter is set in the AndroidManifest and includes the autoVerify attribute.

• Universal Links: Verified the assetlinks.json file.

• Network Conditions: Tested on various network environments (Wi-Fi, cellular) and devices.

I haven't been able to determine which device or OS version is causing this problem. Thank you.