[Hummingbird] My page still got caching even I had add in exclusions


For this page, I had edit the annual meeting to the URL link to 2018, and it show correctly in the preview, but after I updated , the URL still link to the old 2016 one. I figure out it is the caching so I add the page in to exclusion , but this time it wont work too. Any idea how this can fix? Thanks