Users are reporting issues with the loss of data in Apple’s Mail app following the update to macOS 10.15 Catalina, an issue that could lead to the data being made unavailable on other clients that access the same mailboxes.

The recent release of macOS 10.15 Catalina on Monday has, as with any major operating system update, been followed by reports from users of issues with some aspects of the software. In the case of macOSCatalina, arguably the biggest issues revolve around the Mail app.

In a blog post by SpamSieve plug-in developer Michael Tsai, Mail is seen to be causing problems when users upgrade, with the data store’s update seemingly succeeding, but missing messages or holding incomplete versions.

Källa: Missing message issues plague Mail users in macOS Catalina