Lv_screen_load scroll not working

How-to
1

Description

I have created a screen based on the music demo code that displays a scrollable list of songs and has play/pause buttons for each song.

The screen works fine when displayed using the following code:

list = music_list_create(lv_screen_active());

However, when I display the screen using the following code, scrolling and the button image updates do not work. The touch event does work as I can select a song to play.

	lv_obj_t * scr1  = lv_obj_create(NULL);
	lv_obj_t * scr2  = lv_obj_create(NULL);
	list = music_list_create(scr1);
        //ctrl = music_main_create(scr2);
	lv_screen_load(list);

I also tried the following and scrolling and the buttons work, but the scroll messes up the screen

	list = music_list_create(NULL);
	lv_screen_load(list);

image
image1920×1440 273 KB

I can’t find any complete examples. I assume there are some configuration steps that I am missing.

What MCU/Processor/Board and compiler are you using?

Raspberry Pi 3B+

What LVGL version are you using?

9.0