The pop-up window from hovering over the icon for previewing catalog items freezes and will not close
Steps to Reproduce
Navigate to Service Catalog > Catalog.
Click the Add Content button and add the catalog items from any category to the catalog_home page.
Keep hovering over the icons for the catalog items.
Note that sometimes the pop-up window persists and does not go away.
Either refresh the page or hover over the icon again and move the mouse out of the icon to close the pop-up window.
If you are able to upgrade, review the Fixed In and Intended Fix Version fields to determine whether any versions have or are planned to have a permanent fix.
Related Problem: PRB1253475