With Jetpack comments, when a user without a Gravatar profile posts a comments we get a broken image link.
I have tried with using Gravatar hovercards and with not using Gravatar hovercards but there is no difference.
I cannot find any settings to not use Gravatar at all and this problem is making my site look unprofessional. I have tried turning off avatars all together and this technically does work but the site doesn't look as good or engaging.
You can see an example of what is going on at with this post.
Currently we have Gravatar hovercards turned off.
Thanks for your help