Seasons greetings Tableau enthusiasts!
Your non-specific holiday gifts from me this year are the following Quick Fix articles.
If you are a Chrome user, and you have encountered a mysterious "Authentication Failed" error accessing a published dashboard, check this out (spoiler alert – it's Chrome's fault):
Error "Authentication Failed" Viewing Dashboards in Chrome
This next article is pretty specific, but if your organization uses published ODBC data sources, I recommend checking it out:
Unable to Use Aggregations with Published ODBC Data Sources
Stay warm. Unless you're a southern Hemisphere dweller, in which case, stay cool.