The proposed solution of adding x-systemd.device-timeout=15 to /etc/fstab from #963526 DOES NOT help or fix this problem. Tried both plymouth and raw boot, nothing changed. I did not expect it to work, since it's a fix for a different issue (timeout not working). This is not an issue of timeout, but of not properly getting the password prompt. This is a really critical bug, I'm surprised more people are not complaining.