I login to KDE from XDM, distribution is Arch Linux, from which I recently pulled upgrades for KDE. Reproducible: Always Steps to Reproduce: 1. Upgrade system 2. Reboot 3. Actual Results: Login progress bar is empty. Eventually, login happens and I can access KDE desktop. Expected Results: Load bar fills up and then one enters KDE desktop.
Problem fixed itself upon further upgrade of the system this week.