Hello everyone !
It's my first time developping on the Wii U and I didn't find any place on this forum to talk about it so I post it here because that seems like the most relevant place to do it and since i'm using devkitPPC and wut, it seems logical to post on this forum 
Anyway, i'm a beginner and i'm starting to develop a Wii U Homebrew in my spare time. The coding goes well and my features are being implemented successfully. However I have some issues with my homebrew and I feel like those are basic stuffs that could be solved easily if I had better knowledge of the scene but I couldn't find any answer on the Internet 
So here are my issues that I think are linked :
Whenever I launch my homebrew, I get the loading screen with the loading music as every app does on the Wii U, then my homebrew starts but I still have the background loading music running, I don't know much but I guess it means that the homebrew doesn't tell correctly to the wii u that it's loaded and need to change its state, right? And also when I try to quit my homebrew in the home menu, it stays stuck on the Wii U Menu loading screen.
I really tried to find answers online before creating a thread but I couldn't find any anwser
I thought it had something to do with OSScreenInit or WHBProcInit but I tried to use them and I still had the same issues. Maybe i'm using them wrong. And I also think i'm "deiniting" properly everything before quitting the homebrew but it seems like it's not haha
I don't have a repo for my homebrew I do everything locally but I can upload all my code if needed so anyone who wants to help can analyze it
It's a pretty heavy project for a beginner but it includes SDL and also the ffmpeg-wiiu library made by GaryOderNichts. If maybe that can help for a better understanding of my issue.
Have a nice day everyone !