This last one is a bug, but easy to fix, I even can choose between two ways to fix it. Since this is a rather serious bug I will do a new release next week (around Thuesday or Wednesday).
Of course doPhysics() should not do anything on already destroyed actors, but I am using PhysX active transforms to minimize the number of transforms to update. Updating transforms happens while PhysX simulates the scene, in two different threads. This saves a lot of time, but it means that the active transform list which I get from PhysX is the active transform list from the previous simulation step. This list might contain removed actors.
enn0x