tmux mouse interactions not working in iterm2
iTerm2 version: 3.3.11
OS version: 10.15.5
Attach ~/Library/Preferences/com.googlecode.iterm2.plist here (drag-drop from finder into this window) (removed)
Attach a debug log, if possible. Instructions at https://iterm2.com/debuglog (removed)
What happened: I used to be able to split tmux panes and select/resize them with the mouse within iterm2. Suddenly, it stopped working. Mouse controls still work in tmux in Terminal. I have no idea if this is a bug, or if I somehow set something in iterm2 to cause this to happen. If I set something in iterm2, I have no idea how to restore settings without losing ALL of my iterm2 settings. Don't know where to begin to debug the issue; a guide to troubleshooting tmux-mouse issues in iterm would be helpful/appreciated.
What should have happened: By running tmux with multiple panes, I expect to be able to click on a pane to focus it, and to resize the panes by dragging on the divider.
Note: I am not interested in using iterm's built-in tmux because I like to use the same tmux commands across my various devices