Pictoblox: When ESP32 starts up greyed out

Hi, I a trying to set up PictoBlox for the first time. I can see the board is connected via COM4, I have uploaded firmware successfully but my block “when ESP32 starts up” is greyed out and I can’t drag it into the code.
Could anyone pls help me out? Is there a step I have missed?
Thanks so much in advance.
Lukas

Please follow the step-by-step instructions provided in our tutorial:
ESP32 Starter Kit Quick Guide.

If you encounter any issues during the process, we kindly suggest recording a video of the problem and sharing it with us.