Craziest shit today.
Working on lighting up the virtual cockpit the last days using two textures and two parts with visual conditions.
Somehow, when I cloned one part and aligned it to the original one the animation of the "lighted" object disappeared.
Deleted the animation, made new animation and tagged it.
That worked on some of the parts, but not all.
After some back and forth I moved the cloned object a little bit away from the original one and that sort out all problems.
The animation worked, all part disappeared and appeared as they should, but as soon as they where aligned again the cloned object would not disappear and block of the "lighted" object.
Scaling down the cloned object sorted everything out.
Guess it would have worked using reset X-form as well, but so sick and tired now....and down want to animate everything again.
Gotta love Max and FSX
Edit, adding reset X-form and reset scale made no difference.
Only mowing the object slightly away or scaling it down working.