The Sandbox has been updated to reflect the upcoming category changes going live June 2nd, 2015. This means that the current category structure in the Sandbox is NOT the same as in Production today. This gives you the opportunity to test with the new structure before it goes Live in Production.
The following sites are impacted in the June 2nd release:
US, CA, UK, AU, AT, BEFR, FR, DE, EBAYMOTORS, IT, BENL, NL, ES, CH, IN, IE, MY, CAFR, PH, PL, RU