I had turned off crocodog spawning on the world slider, and had 90 days without an attack, and yet about 20 seconds after entering and exiting the volcano, I was besieged by crocodogs and have been getting routinely attacked by them ever since.
Steps to Reproduce
Enter and exit the volcano with crocodog sliders set to None. They will come for you.
This issue has not been confirmed by a developer yet.