First keystroke randomly ignored on switching windows

[adamgotterer]

tmux: 2.3
iterm: 3.0.10
neovim: 0.1.6
osx: 10.11.5

When I switch from a window to a bash prompt the first keystroke in the prompt is ignored. The second and all subsequent keys work as expected. Switching back and forth between windows will cause randomly failures of the first keystroke (seems to only happen when going into a bash prompt). Sometimes it will happen multiple times in a row and other times not at all. I've experienced this happening when switching from neovim to bash and from a docker shell to bash.

[k4nar]

For some reason, I had this issue when using tmux-sensible. Deactivating the plugin seems to solve it.

[christoomey]

Hmmm, interesting. Thanks for sharing the note re: tmux-sensible @k4nar. I did a quick scan and nothing obvious stood out to me, but I'll keep this issue open in case anyone can add more detail / as a reminder to me to look into this more.

[k4nar]

Actually I think that my issue is that tmux-sensible sets tmux set-option -s escape-time 0, and I'm using M-<key> for moving windows, but the Alt key is considered as the escape key. So as far as I can tell it has nothing to do with vim-tmux-navigator directly.

[adamgotterer]

I still have this problem. I've tried a few times to get to the bottom of it, but haven't been able to get any real answers. But the only tmux plugins I have installed are:

tmux-plugins/tmux-yank
tmux-plugins/tmux-copycat
christoomey/vim-tmux-navigator
tmux-plugins/tmux-resurrect

It's been awhile since I've dug in, but I think I disabled all my plugins besides tmux-navigator, which is why I posted this bug here in the first place.

I recorded all key presses to a log while trying to reproduce, but everything looked normally. Does anyone have any suggestions for maybe debugging this further?

[masylum]

I have the same exact issue. I've tried desactivating all plugins with no success. It only happens with <C-h>.

[masylum]

I've even commented out everything in .tmux.conf and same issue :/