Adafruit grand central device doesn't read makecode program

Hi, I am working on the files for the adafruit grand central. The board is already on my local makecode. I can do a new project with it and the simulator works fine (for example when I program the neopixel to turn on as you can see in the screenshots). The problem is that when I download the .uf2 file and put it in my device it doesn't work. I've checked eveything and I can't see to find the problem. The bootloader is not a problem because I already updated it (I updated it with the adafruit v.10 first and then with the microsoft one: v.3.4, now my board is running with the microsoft one.)
I dont know if the problem has to do with the files I created for the Grand Central (which seem to work fine as the board is on the simulator) or what the problem is.

PS: it is true that with other makecode blocks (when I program the "on button D2 click" purple block for example, some random cables and buttons appear in the simulator)
So basically my problem is: 1) my device doesnt read any makecode program and 2) the simulator does random things.

If you need the updated files of the grand central, I can attach them.
Thank you


No source files or tests are identified in the report. Start by reproducing both the simulator behavior and the downloaded .uf2 behavior on an Adafruit Grand Central, then trace the board definition and simulator entry points; done means a MakeCode program runs on the device and the simulator matches the selected blocks.