AI Assistance or Reflection remove not working

Over the past two days, I have encountered an issue where the Gemini-powered AI Assistance features are not functioning when working with 4K resolution files in Photoshop (v27.10.0). While GPT-based models appear to be working correctly, the Gemini models are failing. Additionally, the Reflection removal tool in both Photoshop and Camera Raw within Lightroom Classic is also completely non-functional.

I have already attempted to resolve this by signing out and back into my Adobe account and restarting my computer, but the issue persists. Could you please investigate this?