Just needed to borrow a new computer, and installed vs2012, and updated it. Installed the newest SDK and started coding completely from scratch.
All works fine, deployment works, but the debugger newer attaches to the process, and the breakpoints cannot be seen. When unattaching the debugger and resetting the board, the code runs fine.
Hmm, I might add that the board was a 1.2 with 4.3.3 firmware. There was external power to the USB-DP at the same time the USB was plugged in, and I am still wondering why this does not work…
For beginners this should work out of the box, and in this case it doesnt, which annoys me.