tmux tui windows is Incorrect

Steps to Reproduce the Problem

msys2 install tmux package

pacman -S tmux mintty

use mintty on cmd

.\usr\bin\mintty /usr/bin/bash --login

cygwin install tmux open cmd

.\bin\mintty.exe /usr/bin/bash --login

Screenshots

tmux right mouse button menu and 3 windows

msys2

cygwin

try copy cygwin-ncurses to msys2 makepkg, but still have problems, ncurses, tmux

echo on cygwin different msys2

echo "─────"

msys2 mintty

cygwin mintty