Username Not Correct In Gallery

Gallery Username Issue

This has been a problem for years now and haven't found a solution anytime I search it.

My origin ID is dangeropolis, I build houses from scratch, save them to my library. Shows made by dangeropolis. 

Whenever I post it to the gallery though, it shows made by "aleksandra123xxx" Not "originally made by"  like some users report, but just "made by". This problem has consisted across different computers, saves, etc. etc with it appearing on my earliest upload from 2016. Clicking on aleksandra123xxx takes you to my profile, with my dangeropolis username, but I just find it bizarre that I can't have my username attached correctly. Am I missing something? 

A fix would be helpful, or even a way to change my username so it maybe doesn't happen further on. 

Thank you so much!