(Solution with thanks to muru)
The problem was with the permissions for /home/usrnm/. I fixed it by logging into the problem account by Ctrl+Shift+F3 and then running sudo chmod a+rwx /home/usrnm/
Login Loop and strange PWD
(Solution with thanks to muru)
The problem was with the permissions for /home/usrnm/. I fixed it by logging into the problem account by Ctrl+Shift+F3 and then running sudo chmod a+rwx /home/usrnm/