Thanks for taking your time to report this issue and help making Ubuntu better.
I can confirm this issue, both based on your screenshot and what I see on my own login screen. I'm fairly certain this is a duplicate and that I've seen the same issue reported earlier, but I cannot find that report right now.
Also, since I don't believe shadow deal with the graphical parts of login, I've taken the liberty of moving this to gdm3. Feel free to move again if this isn't the right place either :)
Thanks for taking your time to report this issue and help making Ubuntu better.
I can confirm this issue, both based on your screenshot and what I see on my own login screen. I'm fairly certain this is a duplicate and that I've seen the same issue reported earlier, but I cannot find that report right now.
Also, since I don't believe shadow deal with the graphical parts of login, I've taken the liberty of moving this to gdm3. Feel free to move again if this isn't the right place either :)