This issue might be related to a caching or state management problem in the Phoenix UI. When switching between spans, the UI may not be correctly updating or retaining the state of the explanations, leading to them displaying as `--`. This behavior could be due to how the UI handles the rendering of feedback explanations when navigating between different spans.
To address this, you might want to check if there are any updates or patches available for Phoenix that address this specific issue. Additionally, clearing the browser cache or trying a different browser might help in case it's a caching issue. If the problem persists, consider reporting it to the Phoenix development team for further investigation.
Would you like more detailed steps on how to troubleshoot this issue further?
Sources:
- <https://github.com/Arize-ai/phoenix/issues/6440|Feedback behaviour improvements>
- <https://github.com/Arize-ai/phoenix/issues/5841|Feedback explanation disappears when reopening trace>