When you set up a Snapshot, you will see a Pending status in your Snapshot Dashboard as Crazy Egg captures a screenshot of your web page and builds a manifest of elements.
Once at least 1 visitor has visited your website using the device you specified when creating your Snapshot, the status will switch from Pending to Running
If your Snapshot is still Pending after 24 hours, click on the gear symbol and choose Check installation from the dropdown menu.