diff --git a/lv_core/lv_indev.c b/lv_core/lv_indev.c
index 37ed77268..d7b57941a 100644
--- a/lv_core/lv_indev.c
+++ b/lv_core/lv_indev.c
@@ -346,12 +346,13 @@ static void indev_proc_press(lv_indev_proc_t * info)
         pr_obj = indev_search_obj(info, lv_layer_top());
         if(pr_obj == NULL) pr_obj = indev_search_obj(info, lv_scr_act());
     }
-    /*If there is last object but it is not dragged also search*/
-    else if(info->drag_in_prog == 0) {/*Now act_obj != NULL*/
+    /*If there is last object but it is not dragged and not protected also search*/
+    else if(info->drag_in_prog == 0 &&
+            lv_obj_is_protected(info->act_obj, LV_PROTECT_PRESS_LOST) == false) {/*Now act_obj != NULL*/
         pr_obj = indev_search_obj(info, lv_layer_top());
         if(pr_obj == NULL) pr_obj = indev_search_obj(info, lv_scr_act());
     }
-    /*If a dragable object was the last then keep it*/
+    /*If a dragable or a protected object was the last then keep it*/
     else {
         
     }
diff --git a/lv_core/lv_obj.h b/lv_core/lv_obj.h
index d6b8077ce..e9c937a7e 100644
--- a/lv_core/lv_obj.h
+++ b/lv_core/lv_obj.h
@@ -117,8 +117,9 @@ typedef struct _lv_obj_t
     void * free_ptr;              /*Application specific pointer (set it freely)*/
 #endif
 
-    void * group_p;             /*Pointer to the group of the object*/
-
+#if USE_LV_GROUP != 0
+    void * group_p;                 /*Pointer to the group of the object*/
+#endif
     /*Attributes and states*/
     uint8_t click     :1;    /*1: Can be pressed by an input device*/
     uint8_t drag      :1;    /*1: Enable the dragging*/
@@ -147,6 +148,7 @@ typedef enum
     LV_PROTECT_PARENT    = 0x02, /*Prevent automatic parent change (e.g. in lv_page)*/
     LV_PROTECT_POS       = 0x04, /*Prevent automatic positioning (e.g. in lv_cont layout)*/
     LV_PROTECT_FOLLOW    = 0x08, /*Prevent the object be followed in automatic ordering (e.g. in lv_cont PRETTY layout)*/
+    LV_PROTECT_PRESS_LOST= 0x10, /*TODO */
 }lv_protect_t;
 
 typedef enum
diff --git a/lv_draw/lv_draw.c b/lv_draw/lv_draw.c
index 83ba579ef..2c0f3f4ab 100644
--- a/lv_draw/lv_draw.c
+++ b/lv_draw/lv_draw.c
@@ -1755,7 +1755,7 @@ static void lv_draw_shadow_full(const lv_area_t * coords, const lv_area_t * mask
     bool line_ready;
     for(line = 1; line <= radius + swidth; line++) {        /*Check all rows and make the 1D blur to 2D*/
         line_ready = false;
-        for(col = 1; col < radius + swidth + 1; col++) {        /*Check all pixels in a 1D blur line (from the origo to last shadow pixel (radius + swidth))*/
+        for(col = 1; col < radius + swidth + 10; col++) {        /*Check all pixels in a 1D blur line (from the origo to last shadow pixel (radius + swidth))*/
 
             /*Sum the opacities from the lines above and below this 'row'*/
             int16_t line_rel;
diff --git a/lv_objx/lv_page.c b/lv_objx/lv_page.c
index d29df4def..a6bc37fb7 100644
--- a/lv_objx/lv_page.c
+++ b/lv_objx/lv_page.c
@@ -81,7 +81,7 @@ lv_obj_t * lv_page_create(lv_obj_t * par, lv_obj_t * copy)
         lv_obj_set_design_func(ext->scrl, lv_scrl_design);
 		lv_obj_set_drag(ext->scrl, true);
 		lv_obj_set_drag_throw(ext->scrl, true);
-		lv_obj_set_protect(ext->scrl, LV_PROTECT_PARENT);
+		lv_obj_set_protect(ext->scrl, LV_PROTECT_PARENT | LV_PROTECT_PRESS_LOST);
 		lv_cont_set_fit(ext->scrl, false, true);
 
 		/* Add the signal function only if 'scrolling' is created
diff --git a/lv_objx/lv_slider.c b/lv_objx/lv_slider.c
index 47e862da7..774728d71 100644
--- a/lv_objx/lv_slider.c
+++ b/lv_objx/lv_slider.c
@@ -1,3 +1,4 @@
+
 /**
  * @file lv_slider.c
  * 
@@ -77,6 +78,7 @@ lv_obj_t * lv_slider_create(lv_obj_t * par, lv_obj_t * copy)
     /*Init the new slider slider*/
     if(copy == NULL) {
         lv_obj_set_click(new_slider, true);
+        lv_obj_set_protect(new_slider, LV_PROTECT_PRESS_LOST);
 
         /*Set the default styles*/
         lv_theme_t *th = lv_theme_get_current();
@@ -421,14 +423,12 @@ static lv_res_t lv_slider_signal(lv_obj_t * slider, lv_signal_t sign, void * par
         lv_style_t *knob_style = lv_slider_get_style(slider, LV_SLIDER_STYLE_KNOB);
         lv_coord_t shadow_w = knob_style->body.shadow.width;
         if(ext->knob_in == 0) {
-            /* The smaller size is the knob diameter
-             * +2 for the possible rounding error*/
-            lv_coord_t x = LV_MATH_MIN(w / 2 + 2 + shadow_w, h / 2 + 2 + shadow_w);
+            /* The smaller size is the knob diameter*/
+            lv_coord_t x = LV_MATH_MIN(w / 2 + 1 + shadow_w, h / 2 + 1 + shadow_w);
             if(slider->ext_size < x) slider->ext_size = x;
         } else {
             lv_coord_t pad = LV_MATH_MIN(style->body.padding.hor, style->body.padding.ver);
             if(pad < 0) pad = -pad;
-            if(pad < 1) pad = 1;        /*For possible rounding errors*/
             if(slider->ext_size < pad) slider->ext_size = pad;
 
             if(slider->ext_size < shadow_w) slider->ext_size = shadow_w;