Laravel when accessing a property Trying to get property of non-object?

Question

Laravel

The Pix model has a link to the Picture model

public function picture()
    {
        return $this->hasMany(Picture::class, 'pix_id');
    }

And Picture has a connection with Pix

public function pix()
    {
        return $this->belongsTo(Pix::class);
    }

If you get the first Picture model from Pix through the ->first() method, the Picture model is returned and the property is accessed, then an error occurs Trying to get property of non-object, if you do the same in dd(), then a call occurs, and outside dd() issues error Trying to get property of non-object

Why is this happening?

Answer 1

Notice dd on dump and you will see on which iteration of the loop the error occurs and, therefore, which model has no pictures.