Lock Screen Wallpaper Not Updating and Dock Auto-Hide Not Working

Ever since updating my M4 Mac to macOS Tahoe, I’ve noticed several bugs.

I changed both my desktop and lock screen wallpapers to some of the new options, but the lock screen wallpaper doesn’t seem to stick—it keeps reverting to the one I had before the update. The same issue happens with the screensaver, although thankfully, the desktop wallpaper saves correctly.

Additionally, the “Automatically Hide and Show Dock” setting seems glitchy. Even when enabled, the Dock sometimes stays visible over other apps, particularly right after logging in from the lock screen.

Is anyone else experiencing these issues, and are there any known fixes or workarounds?