Hey, thanks for the detailed report and the screenshot. I can see how the checklist turns into an unreadable table.
This is part of a known issue with the markdown renderer in the chat panel. It doesn’t handle complex formatting combinations correctly, like bold plus inline code plus a dash plus nested bullets. Here’s a similar report: Agent chat renders italic word-soup when model uses asterisk emphasis near numbers.
The team is aware of these renderer issues. There’s no specific ETA, but your report helps us prioritize.
As a workaround for now, you can ask the model not to use checklist syntax (- [ ]) and use regular numbered or bulleted lists instead. That usually renders correctly.