If you tap a link to a post on Meta MathOverflow from mobile browser, Android doesn't provide a choice to open it on SE app, and instead just open the post in the browser.
This bug also made tapping the "Read this post in our app!" link on the top failed, redirecting to Play Store (even though the app is already installed) instead of opening the post directly on the app.
As can be seen, these are the links that SE app (as of v1.0.73) supports:
Click the image to see the full version
- mathoverflow.net (no meta.mathoverflow.net)
The list is sorted for convenience
Example (open this link from Android mobile browser, not from SE app: click "More" on this question, and select "Open in browser" first):
- Happy 5th anniversary, MathOverflow! on Meta MathOverflow
- Examples of common false beliefs in mathematics on MathOverflow main site
Spec: Nexus 5 on Marshmallow 6.0, SE app v1.0.73