Troubleshooting
Navigation broken inside tmux
Some tmux versions don't enable extended key support by default. Without it, key navigation keys like Ctrl+h won't be forwarded correctly and you won't be able to move between panes (e.g. back to the schema panel).
Fix — add this to your ~/.tmux.conf:
set -s extended-keys on
Then reload:
tmux source-file ~/.tmux.conf
tip
If on doesn't fix it, try set -s extended-keys always instead. This forces
extended keys unconditionally and works on terminals that don't properly
advertise support.