Org.kde.kcontrol.kcmplymouth.save does not apply new theme

Latest stable KDE Neon 6.3 on 25.04.03.

In a kde settings of splash screen I’ve checked “breeze text” theme.
And… Now I can’t change it for something else. Even if I choose breeze standart graphic splash theme and press Apply, org.kde.kcontrol.kcmplymouth.save ask me for password. I’ve entering password, it looks like new theme applied, but on next boot nothing changes.

I see /etc/plymouth/plymouthd.conf changed and new theme is there. But it doesn’t applied?

N.B. I’ve already try sudo update-grub, but it doesn’t help.

What to do next?

sudo update-grub2 is correct command.

Now I know KDE Neon uses grub2 :slight_smile:

But it already strange, apply new theme in such konsole way instead of gui settings…