The right side pane in the Agents Window can intermittently restore at an unexpectedly narrow width, leaving the Changes multi-diff editor compressed and difficult to use.
A colleague has seen this layout several times today, but we do not yet know the triggering sequence or reliable reproduction steps.

Expected
The right side pane should retain a usable width and preserve the user's prior layout proportions across session switches and other layout transitions.
Actual
The right side pane sometimes becomes extremely narrow while the session/chat area consumes most of the available width.
Investigation
Look for width-restoration or layout-state races involving:
- switching sessions or chats;
- showing/hiding or maximizing/restoring the editor and details areas;
- opening Changes or a single-file diff;
- resizing or reopening the Agents Window;
- restoring cached single-side-pane proportions.
Additional reproduction details and logs are needed when the layout occurs again.
The right side pane in the Agents Window can intermittently restore at an unexpectedly narrow width, leaving the Changes multi-diff editor compressed and difficult to use.
A colleague has seen this layout several times today, but we do not yet know the triggering sequence or reliable reproduction steps.
Expected
The right side pane should retain a usable width and preserve the user's prior layout proportions across session switches and other layout transitions.
Actual
The right side pane sometimes becomes extremely narrow while the session/chat area consumes most of the available width.
Investigation
Look for width-restoration or layout-state races involving:
Additional reproduction details and logs are needed when the layout occurs again.