Sometimes we face a time-out issue while importing the demo content due to 30 secs time-out settings in the PHP.
The error will be something like the image below.
If you’re facing the Time out issue, please click the “Retry (Disable Thumbnails)” button and It will skip Thumbnails and will Import that Media Block. And will continue to Import Demo Content.
You can then regenerate thumbnails using this plugin: https://wordpress.org/plugins/regenerate-thumbnails/.
NOTE: If the Importer is stuck and not loading, please refresh the page and click the “Begin import” button to start the Import process again and It won’t cause any issue on your site.
