Personal links are not working

I've changed my username long ago from 1993Palkia to Palki since its my new name on all Platforms. If i wan't to use an link from the "My Links" section it still uses my old username so I can't use these links.

If i wan't use "My Achievements" I get these link:
1993Palkia's Achievements

But it should be:
Palki's Achievements

Its the same with the other links, i have to change the link by myself to use it

So it seems, there is no fix for that? :(