Couldn't login after update, new update fixed it.
This is more of an FYI than anything else.
Last Friday I ran an update on my CachyOS desktop. I haven't touched the PC since (busy weekend) but when I try to log in this morning, the login screen refuses my credentials.
I launched a TTY (Ctrl+Alt+F3, for those who want to know) where, to my surprise, I could log in perfectly fine, so it had to be problem in PAM or SDDM.
After fucking around for a bit trying to find the issue, I decided to just try sudo pacman -Syu from the TTY and reboot. Worst that could happen is I needed to revert to a previous snapshot.
Lo and behold, normal update of the system fixed everything and we're back in business.
From now, on, that's the first thing I will try if anything goes wrong after an update.