I have the below program and want it to generate the following pwm signals.

1) 2khz HPWM this is working fine as shown by scope.
2) 25hz 50% duty SPWM this is working fine as shown by scope.
3) 25hz 7% duty SPWM this is not working correctly and is broken up and irregular.
4) 12hz Manual pause defined PWM, again this is not working correctly and the led I have to check the loop is not working
The loop1 is is not executing for some reason.

Perhaps something in my config/register setup?

It uses Darrells Instant interrupts and SPWM but I can't see anything obviously wrong. Can you?

Code:
'------------------------------ General configuration --------------------------

#config

 __config _CONFIG1, _FOSC_INTOSC & _WDTE_OFF & _PWRTE_OFF & _MCLRE_OFF & _BOREN_OFF & _CLKOUTEN_OFF & _FCMEN_OFF
 __config _CONFIG2, _PLLEN_OFF & _LVP_OFF

#ENDCONFIG


DEFINE OSC 16			'Set PicBasic Pro processor speed to 16 Mhz (Must match oscillator value)  
OSCCON = %01111010		'Sets internal osc to 16 Mhz (Default)   
TRISA  = %00000000		'PortA All Outputs 


; Initialize your hardware first

CLEAR

INCLUDE "DT_INTS-14.bas"            ; Base Interrupt System
INCLUDE "SPWM_INT.bas"              ; Software PWM module

DEFINE SPWM_FREQ  25                ; SPWM Frequency
DEFINE SPWM_RES   100               ; SPWM Resolution

  DutyVar1 VAR BYTE          
  DutyVar2 VAR BYTE    
  
  'Port Aliases

MotFsb   VAR PORTA.4		'Define Pin A4 as MOTFSB
RedLed   VAR PORTA.1        'Define Pin A1 as RedLed
 
ASM
SPWM_LIST  macro                    ; Define Pin's to use for SPWM
     SPWM_PIN  PORTA, 0, _DutyVar1  ; and the associated DutyCycle variables
     SPWM_PIN  PORTA, 5, _DutyVar2  ; Notice the underscore before variables     
  endm
  SPWM_INIT  SPWM_LIST              ; Initialize the Pins
ENDASM

ASM
INT_LIST  macro    ; IntSource,        Label,  Type, ResetFlag?
        INT_Handler   TMR1_INT,  SPWMhandler,  ASM,  yes
    endm
    INT_CREATE                      ; Creates the interrupt processor
ENDASM

@ INT_ENABLE  TMR1_INT              ; enable Timer 1 interrupts

;_____________________________________________________________________________

Main:                               ; Simple Demo 
    HPWM 1, 127, 2000     	         'Start 2khz 50% Duty HPWM     
    DutyVar1 = 7                     'Set MOTSTB to 7% Duty  SPWM 
    DutyVar2 = 50                    'Set MOTFSA to 50% Duty SPWM  
        
Loop1:                                 'Bit Bang 12hz PWM

    HIGH MotFsb
    Pause 37 
    LOW MotFsb
    Pause 45
    toggle RedLed
    goto Loop1