* Lightroom Classic 15.4 * macOS (Version angeben) * M1 Max * 262’118 Fotos * Assistierte Bildauswahl gestartet * Analyse nicht mehr stoppbar * CPU dauerhaft 200–400 % * WLAN-Test durchgeführt * Neustart durchgeführt

Lightroom Classic Version: 15.4
Camera Raw Version: 18.4
Platform: macOS (Apple Silicon, MacBook Pro M1 Max)

Issue:
I accidentally started AI Assisted Image Selection on my entire catalog containing 262,118 photos.

After starting the analysis, Lightroom began analyzing the complete catalog. CPU usage increased to between 200% and 400% and remains at that level continuously.

The problem is that I can no longer stop the analysis process.

Observed behavior:

• The Activity panel shows:
  • Assisted Image Selection: Paused
  • Duplicate Detection: Paused
  • Face Detection: Paused
  • Address Lookup: Paused
• All options in the Assisted Image Selection panel are disabled.
• The panel currently shows 0 selected and 0 rejected photos.
• Batch Actions is disabled (greyed out).
• Nevertheless, Lightroom still displays “Photos are being analyzed”.
• CPU usage remains between 200% and 400%.

Troubleshooting already performed:

• Quit and restarted Lightroom Classic.
• Restarted macOS.
• Disabled Wi-Fi completely and restarted Lightroom.
• Verified with Activity Monitor that CPU usage immediately rises again after launching Lightroom, even with no network connection.
• CPU usage drops to zero when Lightroom is closed.
• CPU usage returns immediately when Lightroom is reopened.

Expected behavior:
There should be a way to completely cancel or remove queued AI analysis tasks. Once all analysis options are disabled and all processes show “Paused”, Lightroom should stop background processing and release CPU resources.

Catalog size:
262,118 photos.

Additional note:
For large professional catalogs, accidental activation of AI analysis can result in many days of continuous CPU activity. Users need a reliable method to fully stop or cancel the process.