Hente fatality Jan 2002: "The national arm of the union representing workers at the mine site said it believed the ground underneath Mr Goss's loader caved in after he picked up a second load of earth, plunging his machine down a 15-metre deep crevasse that had not existed moments before.
The national secretary of the Australian Workers Union, Daniel Walton, said it was not clear why the section of earth collapsed."
https://www.abc.net.au/news/2020-01-26/henty-gold-mine-death-cameron-goss-loader-fell-ground-collapse/11901610
Sounds like Hente has significant and unresolved issues with rock competence which, given the two stope failures in 2023, CYL has not gotten a handle on yet.