I'm having a problem with whitespace line wrapping on lvgl

Hello, I am having a problem with a blank line feed on lvgl. For example, if you set a width, the first word displayed can just drop down, followed by a space, followed by a long word, when the long word exceeds the set line width, it will become a case of space exclusive line.

For example:

my code:
lv_obj_t * label1 = lv_label_create(lv_scr_act());
lv_label_set_long_mode(label1, LV_LABEL_LONG_DOT);
lv_label_set_text(label1, “Recolortos yuiopppppp”);
lv_obj_set_width(label1, 80);
lv_obj_set_height(label1, 100);
lv_obj_align(label1, LV_ALIGN_CENTER, 0, -40);

The version used is lvgl7.0。(Due to the requirements of the chip, the version above 8.0 cannot be used)