Just made a few Events in a Club Calendar, and noticed that when this event is displayed in other areas of the suite, and doesn't have its own Cover Photo, the fallback thumbnail used is that of the Club's Icon and not of the Club's Cover Photo:

As you can see, the result is an incredibly low-quality image appearing on Calendar views and widgets.

The purple circle in the image above is the Club Icon that is being pulled for Calendar Events related to the club across the suite. The Cover Photo is much more high quality and visually engaging, and it would make sense for a future update to tweak it so Cover Photos are used in future.

This issue only occurs when the Club Event doesn't have its own Cover Photo assigned, by the way. If I set a unique Cover Photo for the event itself, that image is used instead of the Club Photo. But it would be good to alter the fallback image option to have something more high quality.

Edited March 17Mar 17 by Dreadknux

I'd consider this a bug. I've logged that in our internal tracker.