Well... I was a little too soon with that last post.
Played this morning and it locked twice in a row. It never got to the second floor.
I finished the first screen. Hit the exit stairs. My avatar picture shows my guy walking down the stairs. It then resets to the "normal" avatar picture... and the screen just stays on the same first screen. No music or sound. No mouse input or any keyboard input. I have to kill it from task manager.