Are the Flash updates that are failing only 64bit or 32bit by chance? It might be best to open a case directly with support in case this is a data issue that we should investigate.
When you receive a hash verification failure message it means that the vendor is using a static URL for the download of updates and there is already a newer update than what you're attempting to publish. Most likely Google released a new verion of Chrome before you were able to publish the updates. You can see more info on this error here: http://kb.vmware.com/kb/2013914