Anomalies in Arc after drawing text inside of it


I’ve created a screen with an red arc in the middle of it which acts as a circle.

	GUIView_panicArc = lv_arc_create(GUIView_panicScreen);
	lv_arc_set_start_angle(GUIView_panicArc, 0);
	lv_arc_set_end_angle(GUIView_panicArc, 360);
	lv_arc_set_range(GUIView_panicArc,  0,  100);
	lv_obj_set_size(GUIView_panicArc, 165, 165);
	lv_obj_remove_style(GUIView_panicArc, NULL, LV_PART_KNOB);   /*Be sure the knob is not displayed*/
	lv_obj_clear_flag(GUIView_panicArc, LV_OBJ_FLAG_CLICKABLE);  /*To not allow adjusting by click*/
	lv_obj_align(GUIView_panicArc, LV_ALIGN_TOP_MID, 0, 58);

	// Set foreground color and line width
	lv_obj_set_style_arc_width(GUIView_panicArc, 6,  LV_PART_INDICATOR);
	lv_obj_set_style_arc_color(GUIView_panicArc, GUI_DEFINES_PANIC_ARC_COLOR_RED, LV_PART_INDICATOR);

When i draw text inside of this arc (in this case a number), the arc gets some weird anomalies at the same screen width of the text. The arc appears darker at these widths. It looks as if the screen redraws the whole width of the screen at the text which messes up the arc.

	GUIView_panicCountdown = lv_label_create(GUIView_panicScreen);
	lv_obj_set_style_text_align(GUIView_panicCountdown, LV_TEXT_ALIGN_CENTER, 0);
	lv_obj_align(GUIView_panicCountdown, LV_ALIGN_TOP_MID, 0, 116);

	lv_label_set_text_fmt(GUIView_panicCountdown, "%d", countdownNumber);

What i’ve tried

I’ve tried setting the arc to the foreground.
Redrawing the arc after setting the text.
Re-setting the color of the arc after setting the text.

What can I try more?