diff --git a/src/lv_core/lv_obj.c b/src/lv_core/lv_obj.c
index 42f28a175..fbbaf33bd 100644
--- a/src/lv_core/lv_obj.c
+++ b/src/lv_core/lv_obj.c
@@ -1343,8 +1343,6 @@ 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_cb, lv_obj_t * obj, lv_event_t event, const void * data)
 {
-    if(event_cb == NULL) return LV_RES_OK;
-
     lv_event_temp_data_t event_temp_data;
     event_temp_data.obj = obj;
     event_temp_data.deleted = false;
diff --git a/src/lv_draw/lv_draw_rect.c b/src/lv_draw/lv_draw_rect.c
index 330bf7d98..6a2fad4d2 100644
--- a/src/lv_draw/lv_draw_rect.c
+++ b/src/lv_draw/lv_draw_rect.c
@@ -80,6 +80,7 @@ void lv_draw_rect(const lv_area_t * coords, const lv_area_t * mask, const lv_sty
                   lv_opa_t opa_scale)
 {
     if(lv_area_get_height(coords) < 1 || lv_area_get_width(coords) < 1) return;
+    if(lv_area_is_on(coords, mask) == false) return;
 
 #if LV_USE_SHADOW
     if(style->body.shadow.width != 0) {
diff --git a/src/lv_objx/lv_mbox.c b/src/lv_objx/lv_mbox.c
index 11fa529a2..cb9de0e2a 100644
--- a/src/lv_objx/lv_mbox.c
+++ b/src/lv_objx/lv_mbox.c
@@ -527,7 +527,7 @@ static void lv_mbox_close_ready_cb(lv_anim_t * a)
 
 static void lv_mbox_default_event_cb(lv_obj_t * mbox, lv_event_t event)
 {
-    if(event != LV_EVENT_CLICKED) return;
+    if(event != LV_EVENT_SELECTED) return;
 
     uint16_t btn_id = lv_mbox_get_active_btn(mbox);
     if(btn_id == LV_BTNM_BTN_NONE) return;