Logon screen does not adjust to my preferred settings

Despite several attempts to adjust my logon screen, since the Plasma 6 update and re-installing KDE Neon after that, I cannot adjust the logon screen’s appearance nor get NumLock to start as on. My attempts to adjust the logon screen appearance in done through the system settings GUI. As far as the NumLock, I also turned that on via the system setting Gui, and I have checked my BIOS which has it set to on. Any ideas on where to start troubleshooting this?