VS Code Vim Plugin: In command mode, the s and S key commands don't do anything

I've installed vscodevim.vim plugin (https://marketplace.visualstudio.com/items?itemName=vscodevim.vim) to Visual Studio Code running on OS X. I have the setting.json that I've pasted below.

For the most part everything is working. However, in command mode the s and S key commands don't do anything. I expect that when I press s in command mode, the character under my cursor should be deleted and then I should be in insert mode at the cursor location. But currently it's not doing anything.

I don't see anything in my settings that should cause this. Does anyone know what the issue might be?

settings.json

{
  "vim.easymotion": true,
  "vim.sneak": true,
  "vim.incsearch": true,
  "vim.useSystemClipboard": true,
  "vim.useCtrlKeys": true,
  "vim.hlsearch": true,
  "vim.insertModeKeyBindings": [
    {
      "before": ["j", "j"],
      "after": ["<Esc>"]
    }
  ],
  "vim.normalModeKeyBindingsNonRecursive": [
    {
      "before": ["<leader>", "d"],
      "after": ["d", "d"]
    },
    {
      "before": ["<C-n>"],
      "commands": [":nohl"]
    }
  ],
  "vim.leader": "<space>",
  "vim.handleKeys": {
    "<C-a>": false,
    "<C-f>": false
  },
  "window.zoomLevel": 0,
  "editor.tabSize": 2,
  "editor.detectIndentation": false,
  "editor.dragAndDrop": false
}

Solution

It's actually the "vim.sneak": true that is causing this, as sneak remaps s and S.