Yesware relies on 3rd party cookies and localStorage for certain features, like your your 'Yesware Gcal Dashboard' and allowing 3rd party cookies has long been a requirement to use Yesware. If our 3rd party cookies are blocked, then (among other things) we may misattribute tracking pixel opens from the owner of the pixel.
Go to chrome://settings/cookies and select 'Allow all cookies' or 'Block third-party cookies in Incognito'
Click on the ADD button> type in [*.]yesware.com (we recommend typing it, and not copying and pasting) > check the 'Including third-party cookies on this site' box> ADD> refresh your Gmail page.