Discussions / Queries not saving

First, make sure the features are on. Discussions are only saved when Discussions is enabled in Settings → Chatbot. Queries are only logged in Insights when the Insights module is enabled (Modules tab), and their content is only kept when Queries Data is enabled in Settings → Others → Insights (see Data Not Available).

Discussions without a title

When Summarize is enabled (Settings → Chatbot → Discussions), the Fast model is used to generate the title of each discussion, a little after it is saved. If this model is not set, unreachable, or faulty, the discussion is still saved, but it shows up as “Untitled”. In that case, make sure a valid and reachable model is selected in:

Settings → AI → Default Environments for AI → Fast

Default Environments for AI with the Fast tab selected

Outdated database tables

If nothing is saved at all, it might be because your database tables are not up to date. Updating AI Engine after skipping many versions used to leave old tables without the newer columns, and then nothing could be written to them.

Since AI Engine 3.8.7, the plugin adds the missing columns to its tables by itself when it updates. So first, update AI Engine to the latest version and try again.

If it still doesn’t work, you can rebuild the tables from scratch:

Go to Settings → Others → Maintenance and click Export Settings to avoid losing them.
In the same tab, enable Plugin Data: Delete All.
Uninstall the plugin: this completely removes the plugin’s data, including the outdated tables (and your discussions and logs).
Reinstall the plugin: this creates the correct tables from scratch.
Import your previously saved settings with Import Settings.

Everything should work smoothly after that.