[1.16] Large collision box is not working correctly

I made test 3x3 collision. For convenience, I have marked with colors the areas of the cube (see screenshots). Bounding box shows up correctly but collision works strange. I can't fly horizontally through yellow blocks but I can fall through them. Сorner blocks (red) don't work at all. And I can't fall or walk into blue area. 
Forge 1.16.5 -  35.1.37

public class TestTileEntityBlock extends TileEntityBlock<TestTileEntity> {
    private static final VoxelShape SHAPE = makeCuboidShape(-16, -16, -16, 32, 32, 32);

    public TestTileEntityBlock(Properties properties) {
        super(properties);
    }

    @Override
    public TileEntity createTileEntity(BlockState state, IBlockReader world) {
        return new TestTileEntity();
    }

    @SuppressWarnings("deprecation")
    @Override
    public VoxelShape getCollisionShape(final BlockState state, final IBlockReader world, final BlockPos pos, final ISelectionContext context) {
        return SHAPE;
    }

    @SuppressWarnings("deprecation")
    @Override
    public VoxelShape getShape(final BlockState state, final IBlockReader world, final BlockPos pos, final ISelectionContext context) {
        return SHAPE;
    }
}

Edited February 27, 20214 yr by Aviator737