Session back scrolling corrupted when I attach/re-attach, iterm2

[godlen4332]

I’ve been running into a persistent scrollback issue in agent-deck for several weeks that’s significantly impacting usability.

What’s happening in v1.6.0
• Within a given agent-deck (tmux + Claude Code) session, scrollback works normally initially.
• If I:
1. Detach or switch to another session
2. Then return to the original session
→ scrollback becomes corrupted beyond the visible viewport.
• When scrolling up, instead of seeing earlier output from the current session, I start seeing output that appears to belong to other tmux sessions (“bleedover”).

Impact:
• I effectively lose access to prior output once I leave a session.
• This makes it very difficult to review history or work across multiple sessions.

What I’ve tried / observed:
• Issue is consistent and reproducible across sessions
• I’ve seen a few related issues/fixes mentioned (scrollback clearing, redraw behavior), but this specific cross-session corruption still persists for me
• Feels like either:
• scrollback buffer corruption
• PTY/output stream mixing between sessions
• or interaction between agent-deck + tmux + terminal emulator

Environment:
• macOS
• iTerm2
• tmux (agent-deck managed sessions)

Question:
• Is this a known issue with agent-deck’s session handling or rendering?
• Could this be related to iTerm2 settings (alternate screen, scrollback, etc.), or is it likely internal to agent-deck / Claude Code integration?

Happy to test configs or provide more detailed repro steps if helpful. Would love to get this stable again—right now it’s hard to work across multiple sessions without losing history.

[godlen4332]

Resolved in v1.7.x