Yes, I can draw a reference to two events. On January 5, 2015, the slide occurred at 11:30 p.m., which is interesting, and the train arrived at 1:45 a.m., then stopped for three hours and four minutes. The other occasion was February 18, 2016, when a tree fell across the tracks south of McBride, resulting in a blockage for 1 hour and 39 minutes.
So I can draw reference to at least two occasions where it's either been a mudslide or a fallen tree across the tracks.