PIC24FJ64GU205 Curiosity Nano, Can't set a break point (PeterEk)

Hi, I currently use a PIC24FJ64GU205 Curiosity Nano evaluation board to validate a pic24.If I set a breakpoint in the code (MPLABX environment), the Nano board crash.If I remove the breakpoint it works fine. By pin toggling and UART communication I could ..