I moved this to a new topic, as it’s a recurring issue.
Basically Chrome is not a good fit with our current patching model - we don’t deploy files we cannot verify, and Google replaces the download file too frequently for us to verify and re-publish.
Internally we’re.looking at some improvements in this area but for now the discussion at How to handle Google Chrome? - #15 by JasonWalker may be helpful.
I describe a couple of different methods there: one is a Fixlet at BigFix.me to just download & install whatever Chrome version is available, without verifying hashes. The other is a method to use BESDownloadCacher to prefetch Chrome more frequently (several times a day for instance) so that you have a cached version that matches our Fixlets.