[from X-Plane forum]
ver. 2.4.4-beta12
If I disable and then re-enable X-Camera ("hardly") via the Plugin Admin, camera transitions do not happen anymore.
There is no way to resolve this issue after it has started (=> shutdown of X-Plane necessary).
(FYI: The issue does not occur if I disable and then re-enable X-Camera ("softly") via the X-Camera menu.)