use escape sequence to change cursor shape inside zsh causes character under the cursor becomes invisible

[zyf0330]

I have these codes to change cursor shape inside .zshrc

function zle-line-init zle-keymap-select {
  if [[ ${KEYMAP} == vicmd ]] || [[ $1 = 'block' ]]; then
    echo -ne '\e[1 q'
  elif [[ ${KEYMAP} == main ]] || [[ ${KEYMAP} == viins ]] || [[ ${KEYMAP} = '' ]] || [[ $1 = 'beam' ]]; then
    echo -ne '\e[5 q'
  fi
}
zle -N zle-line-init
zle -N zle-keymap-select
bindkey -M viins 'jk' vi-cmd-mode

In the WebStorm terminal, when I enter viins mode by press i or vicmd mode by press jk, character under the cursor becomes invisible. After cursor moving, it becomes visible again. But if I enter vicmd mode by press esc or ctrl-[, it doesn't.