Hello, it's me again !
So, I have a new problem with textures this time !
I explain :
I've an element Area 3D with the following tree :
AREA3D
-- SPRITE3D
-- CollisionShape3D
So, this element have a long sprite, that displays following the z axis.
I've put some of these elements (along with others) in a scene, as subscenes, and then I've a Camera that move alongside the Z axis, in topview.
New, my problem :
All textures are displayed fine, BUT for this specific element (and not the others) the sprite isn't displayed directly. Some screens to explain :

There is not problem with others elements (like the little error that can be seen), as they aren't "popping", but are displayed partially, as intended.
Have you any ideas for solving this ? :/
(i've tried some things with the viewport render_update, but had no results :/ )