Lv_scr_load_anim() with delay causes an assert

Made those changes, and get the same results.

Begin Screen A load (13) 0x10a634b78 -> 0x10a634e60
Error: lv_obj_get_local_style (lv_obj.c #2927 lv_obj_get_local_style())
Error: Invalid object (0x000000010A634E60) (lv_debug.c #127 lv_debug_log_error())

(LVGL version 7.7.2)