After the newest update I had a few issues. First KDE wasn't updated even though I rebooted. I rebooted again just in case and it finally updated, but I had a bunch of errors appear, something about KWin I think? I rebooted yet again just to see if the same errors would pop up again but this time I couldn't get into the login screen at all. It would react to REISUB/O and CTRL+ALT+DELETE, thankfully. Since I can see the GRUB screen I am able to choose 1 instead 0 and from there I can log in, but 0 is busted