Found and fixed, thanks. Will be sorted in the next update, but in the meantime you can make the correction yourself by opening up ActionTransform.cs and inserting the following into line 61 (above the closing brace):
Sorry, I made the change in ActionTransform.cs, and then - It transforms ok, but the object snaps back to its original rotation after the transition. Position is ok.
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marker = AssignFile <Marker> (parameters, markerParameterID, markerID, marker);
if (transformType == TransformType.CopyMarker)
{
transform.rotation = endRotation;
}