It seems no matter what size photo or resolution I use my photo on Trailhead profile looks like a blurry mess.  Anyone else have this problem?

Hello,
I am studying for ADM 201 Cert using Trailhead.  When I login my Trailhead profile, it shows I have completed 8 badges.  However, when I click the link to show the 8 badges, it actually only shows 4 badges as logos on my profile.

Anybody know what many be the cause?  Thanks!