Free Camera mouse problem

destroyer4316

When i switch to the Free camera mode in space it causes a wierd issue for my mouse. I hold down both mouse keys left and right to fly my ship but with free camera on even though i'm holding down the left button sometimes my cursor reappears and acts as if I'm not holding it down. I can look around but i can't steer the ship in the direction i want even though i'm holding down the left mouse button