Black Mesa Models bug out.

The models in my game bug out I tried this fix https://forums.blackmesasource.com/showthread.php?t=14947
But even after the textures on the models still bug and are missing and some models stretch. The game runs perfect for like 5 minutes and then it all starts happening. Can anyone help?

Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valveā€™s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.