Profile picture not showing?

Greetings! how are you?

So, yesterday I found out this site has an app for mobile and I tried changing my profile picture in there, but alas, it didn't work.

I thought it was only an error with the app somehow not recognizing for some reason the files (idk) so I once again changed it but using my computer; I can't see it either. I saw a "tutorial" blog here that said to just delete the cookies in the browser, but I'm afraid it won't work since I used different devices and the problem persists. 

I haven't been here since I joined basically lol, but thought I'd give a try to blogging at least through my phone... and it bothers me that I don't have a pfp.

Any kind of solution is welcome!