macOS 26 preview does not allow highlighting on much of text

When selecting text in Preview app (Mac OS 26) it shows a blue outline box around the text, but it doesnt allow text selection or highlighting.


[Re-Titled by Moderator]

Original Title: apple os 26 bug-preview doesnt allow highlighting on much of text


MacBook Pro 14″, macOS 26.0

Posted on Sep 18, 2025 12:26 PM

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Question marked as Top-ranking reply

Posted on Feb 16, 2026 2:59 AM

No solved in 26.3,


Additionally I had to solve the selection itslelf not working since first time I installed Tahoe, I found the solution only some weeks ago:


1. Recreate the Missing Caches Folder

Since the system cannot find the "Caches" folder, you must manually ensure the path exists:

  1. Open Finder.
  2. In the top menu, select Go > Go to Folder....
  3. Type ~/Library/ and press Enter.
  4. Look for a folder named Caches.
    • If it's missing: Create a new folder (Shift+Command+N) and name it exactly Caches.
    • If it's an alias (it has a small arrow icon): Delete it and create a real folder named Caches instead. 

2. Reset the Finder and Sidebar

Sometimes the Finder sidebar points to a corrupted "broken link" for system folders. 

  1. Right-click any folder in your Finder Sidebar that is giving you this error and select Remove from Sidebar.
  2. Relaunch Finder: Hold the Option key, right-click the Finder icon in your Dock, and select Relaunch.
  3. Try to navigate back to ~/Library/Caches to see if the error is gone. 

3. Restart

If the mediaanalysisd process is still not appearing in Activity Monitor:

  1. Shut down your M1 Mac.
  2. Press and hold the Power button until you see "Loading startup options".
  3. Select your disk, then hold the Shift key and click Continue in Safe Mode.
  4. While in Safe Mode, try selecting text in an image. Then, restart normally. Safe Mode clears and rebuilds system caches automatically. 





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macOS 26 preview does not allow highlighting on much of text

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