Duplicate banner and repeated messages in a single session

Summary

In a single Claude Code session, the startup banner can appear more than once, and previously rendered messages/tool-call entries can be inserted again into the same conversation view.

Expected behavior

• A single session should show the Claude Code startup banner only once.
• Previously rendered user messages should not be inserted again later in the same session.
• Tool call logs should not be duplicated in the same session view.

Actual behavior

• The Claude Code banner appears again in the middle of an existing session.
• A previously asked user message is rendered again below the repeated banner.
• Tool call output/history is also repeated, which makes the conversation look mixed together or reinitialized.

What I observed from the screenshot

In the same session, after earlier conversation content is already visible, the UI shows another Claude Code banner:

• Claude Code v2.1.101
• gpt-5.4 with high effort · API Usage Billing

Below that repeated banner, an earlier user message is shown again:

• 查询ghostty的默认配置是什么？

And the related tool activity is rendered again as well, including a Context7 call line beginning with:

• context7 - resolve-library-id ...

This makes it look like the session UI was initialized or replayed again inside the same conversation.

Environment

• Claude Code v2.1.101
• macOS
• Terminal: Ghostty

Notes

I have a screenshot showing the duplicate banner and repeated message/tool output. I can provide it if needed.