Failed "eventAction: artifact" disappears from the trace after browser refresh.

[Spikhalskiy]

Describe the bug This problem is related to the main bug submitted as #3291.

After getting the described error

it becomes visible in the trace, as can be seen in the screenshot:

After refreshing the page or moving back and forth to a different session, the error event disappears from the trace:

Expected behavior Trace shouldn't change or lose events when I move between sessions or refresh the browser window.

Desktop (please complete the following information):

• OS: Ubuntu
• Python version(python -V): 3.13.9
• ADK version(pip show google-adk): v1.17.0

Model Information:

• Are you using LiteLLM: No
• Which model is being used: gemini-2.5-flash