Hey I got almost same problem that BigD has. I got that problem in 3.2 final not beta.
Problem occurs when I play marines.
I use developer 1 and fps 111. When game starts and I play in the marines my console is full of that ish "Sprite: no such frame ? " . It only occurs when I use cl_hudzoom 0 and its fixed when I use cl_hudzoom 1-3..