Retouch in my Lightroom mobile isn’t working; it says can’t detect face when it’s a portrait facing the camera in good lighting

Hi, I'm having an issue with Lightroom Mobile on my iPhone 11 running iOS 26.5. The AI Retouch tool is not working correctly. It processes for a few seconds and then says "No retouchable areas could be found," even when the subject's face is clearly visible. This issue started immediately after updating to iOS 26.5.

I have already:

• Updated Lightroom to version 11.4.0
• Reinstalled the app
• Restarted my iPhone
• Confirmed I have an active Lightroom Premium subscription
• Tested on both Wi-Fi and cellular
• Tested Adobe's sample image, which also fails with the same error

Some photos work, while others do not, even though they were all taken on the same Sony a6400 camera with the same settings. Since the sample image also fails, I believe this is a bug with Lightroom Mobile or an iOS 26.5 compatibility issue.

Could you please check whether this is a known issue and escalate it to the Lightroom engineering team if necessary?