Just to check, have you recently updated your profile picture? Also, can you tell us if it happens on all your devices? Let us know which ones, their operating systems, and the Spotify version you're currently using.
We've had a look at your Spotify profile and can confirm your profile picture is displayed accordingly. Do you mind changing your profile picture again? That will help us see if the changes are visible in the app in the next 24-48 hours.