diff --git a/src/lv_core/lv_obj.c b/src/lv_core/lv_obj.c
index 65a223796..c84ee346d 100644
--- a/src/lv_core/lv_obj.c
+++ b/src/lv_core/lv_obj.c
@@ -1504,6 +1504,10 @@ lv_res_t lv_event_send(lv_obj_t * obj, lv_event_t event, const void * data)
  */
 lv_res_t lv_event_send_func(lv_event_cb_t event_xcb, lv_obj_t * obj, lv_event_t event, const void * data)
 {
+    if(obj != NULL) {
+        LV_ASSERT_OBJ(obj, LV_OBJX_NAME);
+    }
+
     /* Build a simple linked list from the objects used in the events
      * It's important to know if an this object was deleted by a nested event
      * called from this `even_cb`. */
diff --git a/src/lv_objx/lv_btnm.c b/src/lv_objx/lv_btnm.c
index e783a1045..26d13504d 100644
--- a/src/lv_objx/lv_btnm.c
+++ b/src/lv_objx/lv_btnm.c
@@ -864,9 +864,10 @@ static lv_res_t lv_btnm_signal(lv_obj_t * btnm, lv_signal_t sign, void * param)
         lv_indev_type_t indev_type = lv_indev_get_type(indev);
 
         /*If not focused by an input device assume the last input device*/
-       if(indev_type == LV_INDEV_TYPE_NONE) {
-           indev_type = lv_indev_get_type(lv_indev_get_next(NULL));
-       }
+        if(indev == NULL) {
+            indev = lv_indev_get_next(NULL);
+            indev_type = lv_indev_get_type(indev);
+        }
 
         if(indev_type == LV_INDEV_TYPE_POINTER) {
             /*Select the clicked button*/
diff --git a/src/lv_objx/lv_img.c b/src/lv_objx/lv_img.c
index c78e1d93f..0f52206a4 100644
--- a/src/lv_objx/lv_img.c
+++ b/src/lv_objx/lv_img.c
@@ -502,6 +502,9 @@ static lv_design_res_t lv_img_design(lv_obj_t * img, const lv_area_t * clip_area
             cover = lv_area_is_in(clip_area, &img->coords) ? LV_DESIGN_RES_COVER : LV_DESIGN_RES_NOT_COVER;
         }
 
+        const lv_style_t * style = lv_img_get_style(img, LV_IMG_STYLE_MAIN);
+        if(style->image.opa < LV_OPA_MAX) return false;
+
         return cover;
     } else if(mode == LV_DESIGN_DRAW_MAIN) {
         if(ext->h == 0 || ext->w == 0) return true;