Hi, I had an issue with nvim/tmux/st which caused tmux to crashdump when starting nvim.
So I raised this with tmux-dev on https://github.com/tmux/tmux/issues/1264 and Nicholas responded that 1519220758.596852 st-256color 200: Ss: (string) \\033]52;%p1%s;%p2%s\\007 "Ss" is wrong. It should be "Ms" instead... :-) Please see the Github issue... Kind Regards Thomas Preissler