Grove Base Shield for NodeMCU and Grove Led -Problem

Grove Shield for NodeMCU (ESP8266) + Arduino Ide.

  • Sketches with various i2c Sensors work fine - no problem
  • Internal Led Example - works fine

Attach a Grove Led and change the pin of the blinking example to D5. Nothing happens!

I changed the pin number, the grove sockets - nothing happens - the led works - on postion D3 the light is on starting the device. I have no idea what is wrong.
Thanks
Peter