Bad blocks appear in the displayed JPG image

General discussion
1

Using lvgl v8.2
image

    obj = lv_obj_create(lv_scr_act());
    lv_obj_remove_style_all(obj);
    lv_obj_set_size(obj,LV_HOR_RES,LV_VER_RES);
    lv_obj_set_style_bg_opa(obj,LV_OPA_COVER,0);

    lv_obj_t * img = lv_img_create(obj);
    lv_img_set_src(img, "/:./res/pic/jpg.jpg");

    LV_IMG_DECLARE(jpg);
    img = lv_img_create(obj);
    lv_img_set_src(img, &jpg);
    lv_obj_align(img,LV_ALIGN_TOP_RIGHT,0,0);

Original image
jpg

2

I don’t know if anyone knows the reason