Camber has gone positive

The camber was negative one degree. Now it is visibly positive on both wheels. The cam adjusters have not moved and the wheels has no play in it. Upper CA's are Firm Feel, 1.06 bars and Bilsteins. The car has 36,000 very hard miles on it (quarter miles passes, autocross and road courses).

It now has bump steer and feels like it has bias ply tires. We're running 255x45x17 Nittos on the street. Everything looks tight, the next step is to put a wrench on everything. If nothing is loose then I will start disassembling. The LCA's have not been boxed, if they fail does it affect camber?