Like many others, my lamp is broken into pieces after a few keyframes in my animation. It should normally slide two times then jump. I could not explain why, neither find out what I did wrong.
My source file if you want to have a look:
AnimatedLampForExport.blend (1000.7 KB)
If I remember correctly you still need to have the lamp parented to the Armature after re-rigging
That did the trick for me, thanks!
But in edit mode when playing through the animation the joints still looked to be coming apart in certain frames. However, when I step through the animation in Rendered mode, it’s all connected ok, strange.