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 Valve’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.