Fix for data texture mip maps uploading to zero level. (#23492)

Fixes #23490

src/renderers/webgl/WebGLTextures.js

@@ -803,7 +803,7 @@ function WebGLTextures( _gl, extensions, state, properties, capabilities, utils,
 
 						if ( useTexStorage ) {
 
-							state.texSubImage2D( _gl.TEXTURE_2D, 0, 0, 0, mipmap.width, mipmap.height, glFormat, glType, mipmap.data );
+							state.texSubImage2D( _gl.TEXTURE_2D, i, 0, 0, mipmap.width, mipmap.height, glFormat, glType, mipmap.data );
 
 						} else {