Starting with the release of Strategy ONE (March 2024), dossiers are also known as dashboards.
In Strategy Library 2019 Mobile, you may receive the unwanted message, "This page contains more than 3 links," when there are more than three links added via the Link Editor in a dossier. The links could be links to other chapters in the same dossier, or to external links.
In Library, the following chapter contains links:

When the dossier updated on Web and run again on Library Mobile, the following message appears:
This page contains more than 3 links

This message was implemented by the Technology Team, and therefore, expected.
Starting in Strategy 2020, the message has been removed by default. To benefit from this changed behavior, please upgrade to Strategy 2020.