I start engine when opening the top, the top stopped. Is that normal? on 2004 Mercedes-Benz SL500

The top continue to open when I open again. It still work fine.
Could it be a safety reason or there's a malfunction?
Thanks you very much!

Asked by for the 2004 Mercedes-Benz SL500
It is normal for the top to stop while the engine is cranking. Many electrical devices are not connected to the starting circuit, in order to maximize power to the starter.