Hi!, I found this and I think that it could lead to bugs
In btSliderConstraint, the variables m_linPos, m_angDepth and m_angPos are not initialized with the class. If someone create the constraint and before call stepSimulation ask by getLinearPos(), getAngDepth() or getAngularPos(), will get random values.
By the moment I am solving using the testLinLimits() and testAngLimits() to initialize values
Best regards!