CCS/MSP430FR6989: Variable doesn't act the way it should in the debugger (CCS 6.1.0)

Tool/software: Code Composer Studio

Hi TI community,

I have an MSP430FR6989 uc, programming it using MSP-EXP430FR6989 launch pad, and I am using CCS 6.1.0

am doing a simple code, where I create an odometer that counts from 0 to 99,999, and then resets again.

This is my code.

#include <msp430.h> 
 
#define DEVELOPMENT 0x5A80
#define ENABLE_PINS 0xFFFE
 
int main(void)
{
    WDTCTL = DEVELOPMENT;
    PM5CTL0 = ENABLE_PINS;//this is needed in order to enable pins
    
    P1DIR = 0x01;
    P1OUT = 0x00;
    
    unsigned int ones, tens, hund, thou, tnth;
    
    unsigned long km = 0;
    
    while(1)
    {
        for(tnth = 0;tnth<10;tnth++)
        {
            for(thou = 0;thou<10;thou++)
            {
                for(hund = 0;hund<10;hund++)
                {
                    for(tens = 0;tens<10;tens++)
                    {
                        for(ones = 0; ones<10;ones++)
                        {
                            km = 10000*tnth+1000*thou+100*hund+10*tens+ones;
                        }
                    }
                }
            }
        }
        
        P1OUT = ~P1OUT;
        km = 0;
    }
 
return 0;
}

I added a breakpoint at P1OUT = ~P1OUT , and pressed the Resume button. (Line 41)

At that line, I see the values of tnth , thou , hund , tens , and ones  are equal to 10 , which is as expected.

But I also expected km = 99999 , but instead I got km = 34463 . Shouldn't km = 99999.

Also

I modified my code, and changed thnth , thou , hund , tens , and ones  to signed int  instead of unsigned int 

when I Run my program, and it reaches the breakpoint, I see km > 4,000,000,000 

Which doesn't make sense.

I believe the problem is with CCS. I searched online, and some people mentioned that CCS is not synchronizing with the microcontroller, if that was the case, how can I fix it.

I would appreciate your help.

Regards,

Forat