Weapon Textures Suddenly gone!

Just last night I was playing Black Mesa up to the end of the “Questionable Ethics” Chapter and everything was working just fine. I left from there, rejoined the game this morning and suddenly, ALL my weapons textures have changed to the purple and black checkerboard (missing textures). I checked the game files and the weapon texture files are all still there. The only thing I did between last night and this morning was verify my integrity for Source SDK Base 2007, and I also put ‘-dxlevel 9.0’ in the Set Launch Options for Black Mesa. Did doing any of those REALLY cause my weapons to lose their textures?!?!?!

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.