Problem Description:

This article is helpful if you had existing content in WordPress prior to activating a new theme, or added content prior to configuring WooCommerce.

Answer:

  1. Go to PluginsAdd New
  2. Search for ‘Regenerate Thumbnails‘ and click Install under the Regenerate Thumbnails plugin listing by Viper007Bond. This is an actively developed and supported plugin approved by WordPress developers.

    Regenerate Thumbnails

  3. Activate the plugin when complete
  4. Go to ToolsRegen Thumbnails and click Regenerate Thumbnails. This process can take several minutes, so do not navigate away from the page or close the browser until complete.
    • You may open a new tab and continue working in WordPress until the regen finishes.
  5. When complete, reload your page and the images should be as expected