Force click look up not working correctly

The spinning wheel issue with the Look Up feature (force-clicking a word) on macOS 27.0.1 is typically caused by Spotlight background re-indexing or pending asset downloads following a system update. Because Siri Knowledge, News, and online lookups rely directly on the Spotlight index and active internet connections, they will stall or spin infinitely until the system finishes these processes.

You can resolve this issue by trying the following steps:

Wait for Spotlight to Finish Indexing

When macOS undergoes a major update or a version patch (like 27.0.1), it triggers a complete rebuild of the system search index.

• The Fix: Plug your Mac into power and leave it awake. You can check if it is indexing by clicking the Spotlight icon (magnifying glass) in the menu bar and typing a few letters; if a progress bar appears stating it is indexing, wait until it finishes.

Verify Siri AI Status and Background Setup

If you are using the new Siri AI features, the system may still be downloading large language or voice models in the background.

• The Fix: Go to System Settings > Siri. Ensure that Siri is fully enabled and that there are no status messages stating "Adding support for Siri is in progress" or downloading prompts.

Check Network and Content Restrictions

Online Look Up features require a stable connection to fetch web results, news, and images.

• The Fix: Go to System Settings > Network to confirm your internet is working properly.
• Additionally, ensure Screen Time Content & Privacy Restrictions aren't accidentally blocking Siri or web content

More info from Apple: If Siri on Mac doesn’t work as expected - Apple Support

If the above steps do not work, then Have you rebooted your Mac? If not, that's the first step. If that does not help, then see if the problem is present when you boot in safe mode. That process performs some system cleanup and clears caches, and also disables 3rd party extensions that may cause problems.

Start up your Mac in safe mode - Apple Support

If that does not correct the issue, test in a new user account. A newly-created user account will have all settings at default, and if the issue does not occur in that new account then it provides guidance on what may need to be changed to correct the issue.

Add a user or group on Mac - Apple Support

Once the testing is complete, the new account can easily be deleted.

Delete a user or group on Mac – Apple Support

Those steps will help to isolate the problem.

Personally, Force Click for Lookup is working fine on my Mac running macOS 27.0.1.