This happened on R2:12. When I step on a certain square on the level, the message "48/62" is displayed. It appears again and again, but only when certain criteria are met:

* I must enter the square from the west, not south (no other directions available)
* I must step on it by pressing "w6", regular walking does not trigger the message.

Also noticed another similar message, "53/62" on the same level, but was unable to replicate that one.

Savefile is available if needed.