Hacking ROM Hack Problem with a 3ds video game dump textures.

[CubeCreatorFan]

hello, i am making a rom hack of this game called cube creator 3d, i am trying to change the backgrounds and buttons of the game, but when i save the new textures the game shows a black screen when starting, the sounds are heard but there is no video, this only It happens to me with this specific file called guishared.arc, I don't know what I can do to edit these textures and make the game work (I've changed other textures in the game and they work fine) I'm using the kuriimu program to dump the textures.
In a Citra emulator is working, but the text is bug.

citra emulator.