When discussions are saved, the Default Fast model is called to generate the discussion name. If this model is not set, unreachable, or faulty, the discussion might not be saved. So first, ensure that your Default Fast model is correctly set up by going to:

Settings → AI → Default Environments for AI → Default (fast)

Make sure a valid and reachable model is selected there:

If the issue still persists, it might be because your database schema is not up to date.

Updating AI Engine after skipping several versions can cause issues—specifically database discrepancies—because the plugin might not register data properly for features like Insights to work. The database structure may be outdated and incompatible, preventing data from being saved properly.

To fix this:

• Go to the plugin settings and export your settings to avoid losing them.
• Enable the “Delete Data” option in the settings.
• Uninstall the plugin—this will completely remove the plugin’s data, including the outdated database structure.
• Reinstall the plugin—this will create the correct database structure from scratch.
• Import your previously saved settings.

Everything should work smoothly after that.