[BUG] Windows Terminal: Scrolling up in an AgentView agent session gets stuck in input box, cycling input history instead of scrolling chat
Status Open
Reported on v2.1.211
Maintainer reply None cached
Activity 0 comments · opened Jul 16, 2026
Environment
- Claude Code version: 2.1.211
- OS: Windows
- Terminal: Windows Terminal
Description
After opening an agent session from AgentView, scrolling up does not scroll the chat/conversation content. Instead, the scroll action gets stuck in the input box, and previously sent messages (input history) cycle through the input box instead of the viewport scrolling through chat history.
Repro steps
- Open AgentView.
- Enter an existing agent session from AgentView.
- Scroll up (mouse wheel / PgUp).
- Observe: focus/scroll stays on the input box, which cycles through previously sent messages, rather than scrolling the chat history above.
Comparison
Same Claude Code version on Linux does not reproduce this issue - scrolling up works normally there. This appears to be Windows-specific.
Related but distinct issues found during triage:
- #12953 (mousewheel scrolls input history instead of chat) - different trigger (post- 'watch' command over SSH), not AgentView-specific.
- #77390 (PgUp/PgDn do nothing, viewport frozen) - different symptom (no movement at all vs. wrong target scrolling).
This looks like a separate AgentView-specific regression on Windows Terminal.