Fix Guide: Tahoe Safari "Shared with You" Sync Loops

Symptom: Safari on macOS Tahoe repeatedly cycles through "Shared with You" content, causing high CPU usage and missing links from the sidebar.

Why this happens

A synchronization mismatch between the cloudmsh daemon and the Safari local database causes the sync process to restart indefinitely.

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Fix 1: Reset the Cloud Services Metadata

1. Quit Safari.
2. Open Terminal.
3. Reset the sharing metadata cache:

rm -rf ~/Library/Containers/com.apple.Safari/Data/Library/Caches/com.apple.Safari/SharingMetadata

1. Restart your Mac.

Fix 2: Re-toggle Shared with You in Messages

1. Open Messages settings.
2. Go to the "Shared with You" tab.
3. Uncheck Safari, wait 30 seconds, and check it again.