MSP430FR2422: RTC not behaving --- how to?

I have an application that I want to boot into LPM3 with P1.1 enabled as a switch....Upon pushing this switch I want a PWM to operate AND I enable the RTC at once per second.  I exit P1 interrupt still sleeping.  The hope is that after 100 seconds a counter in the RTC recognizes this and puts the device into LPM3.5.  Upon coming out of 3.5 I attempt to clear PMMREGOFF and force a brownout which puts me back at 'normal' mode.  None of this seems to be happening correctly....The code below after pushing the button starts the PWM then after about 2 seconds of flashing the LED just stays on.  I am finding it EXTREMELY difficult to work with this LPM3.5/RTC.  I constantly am trying to pause the debugger to reboot but CCS will have non of it and tends to lock up.  Can someone give me suggestions on both what I am doing wrong in the code as well as why CCS keeps wanting to lock up?  BTW. The RTC #2 program under this part and resource explorer does similar.  I've cut and pasted it just changing the IO to my IO and CCS still wanders off.  I have loaded the RTC #1 program onto the board and it works fine (every second it just toggles the IO in the RTC).

I would ultimately like to go into LPM3 after the PWM is over (my understanding is PWM won't work below LPM3) and reboot to a state of just very low power ie 3.5 until someone pushes the button again.

Thanks

CCS when pause is pushed responds with:

MSP430: Trouble Halting Target CPU: Internal error

#include <msp430.h> 
#include "funct.h"

volatile unsigned int count;
volatile unsigned int flag = 0;

int main(void)
{
    WDTCTL = WDTPW | WDTHOLD;	// stop watchdog timer

    //small macro to flash LED to show a reset has occured.
    configGPIO();
    PM5CTL0 &= ~LOCKLPM5;
    __delay_cycles(80000);
    P1OUT &= ~BIT4;
    configACLK();
	if (SYSRSTIV == SYSRSTIV_LPM5WU) { //wake up from LPM3.5?
	    flag = 0;
	    configGPIO();
	    PMMCTL0 = PMMPW;
	    PMMCTL0 &= ~PMMREGOFF; //clear LPM3.5 bit
	    PMMCTL0 |= PMMSWBOR; // force reboot to normal
	}
	else { //no?
	    __bis_SR_register(LPM3_bits + GIE); //LPM3.5 entry point
	}
	return 0;
}

#pragma vector = RTC_VECTOR
__interrupt void thirtyMinuteCounter(void)
{
    switch(__even_in_range(RTCIV, RTCIV_RTCIF))
    {
        case RTCIV_NONE : break;            // No interrupt pending
        case RTCIV_RTCIF:                   // RTC Overflow
            count++;
            if (count >= 100)
            {
                count = 0;
                PMMCTL0 = PMMPW; // Open PMM Registers for write
                PMMCTL0_L |= PMMREGOFF; //sets LPM3.5
            }
            break;
        default:
            break;
    }
}

#pragma vector = PORT1_VECTOR
__interrupt void ifNonLPM3_5(void)
{
    switch (__even_in_range(P1IV, 4))
    {
        case 4: //P1.1
            configTA0_PWM(16384, 4); //3276
            configRTC(33); //1800
            break;
        default:
            break;
    }
}