Until a few days ago, tmux was working fine.

Suddenly, I don't know what my colleague did, but the shortcuts stopped working.

We're both using tmux on a remote server (two different sessions), but no session works now.

I mean, we can attach them (tmux a -t name works), but then, the shortcut doesn't work.

If I do Ctrl + a, d, it just writes d to the terminal. I tried with the original shortcut (Ctrl + b) but no change.

Any idea of what could cause this?

Until a few days ago, tmux was working fine.

Suddenly, I don't know what my colleague did, but the shortcuts stopped working.

We're both using tmux on a remote server (two different sessions), but no session works now.

I mean, we can attach them (tmux a -t name works), but then, the shortcut doesn't work.

If I do Ctrl + a, d, it just writes d to the terminal. I tried with the original shortcut (Ctrl + b) but no change.

My tmux.conf is clearly taken into account, since if I do tmux new -s someName, I get all the status bar and stuff. The initialization shortcut doesn't work however.

Any idea of what could cause this?