eBay has made some changes to Purchase History. As a result, older hidden items are no longer hidden, and the default view has changed. Only recent transactions have the option to hide.
Use a different link to view your purchases, such as this one:
https://www.ebay.com.au/mye/myebay/v2/purchase?filter=year_filter%3ALAST60&page=1&moduleId=122164&pg...
Set the page to display what you want to see and hide what you want to hide, then bookmark the page and use the bookmark rather than eBay's link until eBay fixes the issue with the link.
