AI Assistant not responsive

The AI Assistant in Adobe After Effects Beta is completely nonfunctional. Every prompt submitted results in the same error message, regardless of the complexity of the request or whether a project is open.

Exact Error Message:

"There was an issue processing your request. Please try again. If the issue persists, please start a new chat."

Steps to Reproduce:

1. Launch Adobe After Effects Beta on macOS.

2. Open the AI Assistant (Beta) panel.

3. Start a new chat.

4. Enter a simple prompt.

5. Submit the prompt.

6. The AI Assistant displays the processing error instead of responding.

Expected Behavior:

The AI Assistant should process prompts and provide responses or perform supported actions within After Effects.

Actual Behavior:

The AI Assistant fails to process every prompt, including basic text prompts that do not require access to project files or compositions. The error occurs consistently, including with a completely new, blank project.

Troubleshooting Already Completed:

• Confirmed that no After Effects Beta updates are available.

• Restarted After Effects Beta multiple times.

• Completely uninstalled and reinstalled After Effects Beta.

• Created a new, blank After Effects project.

• Started multiple new AI Assistant chats.

• Tested both complex project-related prompts and a simple "hello" prompt.

• Manually granted After Effects Beta Full Disk Access through macOS System Settings.

• Signed out of Adobe Creative Cloud and signed back in.

• Confirmed that the subscription is an individual Creative Cloud account, not an enterprise-managed account.

None of these steps resolved the issue.

Environment:

• Operating System: macOS

• Application: Adobe After Effects (Beta)