Fastled (Show); Not acting as expected

So Will try this again (and try to follow the rules)

I have the the following code. The issue is that the only section in the void InitializeAllLeds routine that works is the BlinkRed call at the end. The called routines are posted below. As can be seen BlinkBlue is identical to BlinkRed except for the color to be shown.

Serial Monitor shows int i decrementing as expected but no leds are illuminated. It also shows the counter in the // NOW FLASH SHIFTPOINT LED’s section incrementing as expected but again no LEDs lit.

Anyone see anything that I am overlooking??

// ******************************************************************************
// **************** At Startup Cycle All LEDS through all modes    **************
// ******************************************************************************
void InitializeAllLeds(long delayTime) {
  
  // Turn on All Leds one at a time
  int i = 47;
   while ( i > 0){ 
    i = i-1;
    Serial.print ("i = ");
    Serial.println (i);
    ring[i] = CRGB:: Green;
    FastLED.setBrightness(35);
    FastLED.show(100);
    delay (10);
    }
  
  // Now that LED_NUMBER is at Min turn off LEDS
  FastLED.clear();  // clear all pixel data
  FastLED.show();
  FastLED.setBrightness(50);
    
  // NOW FLASH SHIFTPOINT LED's
  int counter = 0; 
   while (counter <5){
  ShiftPointWarning (); 
  counter ++;
  Serial.print ("Counter = ");
  Serial.println (counter);
}
  counter = 0;
  FastLED.setBrightness(75);
  
// NOW FLASH OVERREV LED's
  while (counter <5){
  OverRevWarning (); 
  delay (65);
  counter ++;
  
}
counter = 0;
 }


// ******************************************************************************
//  ********************************** BLINK LEDS BLUE****************************
// ******************************************************************************
void BlinkBlue(long delayTime) {
   FastLED.clear();  // clear all pixel data
  FastLED.show();
  NumLedsToLight = NUM_LEDS; //Force all LED's Red
  LED_NUMBER = 0;
  FastLED.setBrightness(75);
  while (LED_NUMBER <  NumLedsToLight) {
    ring[LED_NUMBER] = CRGB::Blue;
    LED_NUMBER < NumLedsToLight; ++LED_NUMBER;
  }
  FastLED.show(150);
  delay (20);
  BuildAndAverageFiveRPMCounts ();

}

// ******************************************************************************
// ********************************** BLINK LEDS RED*****************************
// ******************************************************************************

void BlinkRed(long delayTime) {
  FastLED.clear();  // clear all pixel data
  FastLED.show();
  NumLedsToLight = NUM_LEDS; //Force all LED's Red
  LED_NUMBER = 0;
  FastLED.setBrightness(75);
  while (LED_NUMBER <  NumLedsToLight) {
    ring[LED_NUMBER] = CRGB::Red;
    LED_NUMBER < NumLedsToLight; ++LED_NUMBER;
  }
  FastLED.show(150);
  delay (20);
  BuildAndAverageFiveRPMCounts ();

}

// ******************************** Turn OFF All LEDs ****************************
// *                        callable routine BlinkOFF all LEDs                   *
// *******************************************************************************

void BlinkOFF(long delayTime) {
  FastLED.clear();  // clear all pixel data
  FastLED.show();   //Turn off all LED's
}

// ****************************************************************************
// *                      SHIFTPOINT WARNING -  BLINK BLUE                    *
// ****************************************************************************
void ShiftPointWarning () {
  #define BRIGHTNESS 50
  delay(100); //timing for a leisurly blink rate
  BlinkBlue (delay);
  BlinkOFF (delay);
}

// ****************************************************************************
// *                       OVERREV Warning - BLINK ALL LED's RED              *
// ****************************************************************************

void OverRevWarning () {
#define BRIGHTNESS 75
  delay(65);  //timing for a FRENETIC blink rate
  BlinkRed (delay);
  BlinkOFF (delay);
}

Duplicate post to: https://forum.arduino.cc/index.php?topic=705641.0
Reported to moderator.

@Albeix

Other post/duplicate DELETED
Please do NOT cross post / duplicate as it wastes peoples time and efforts to have more than one post for a single topic.

Continued cross posting could result in a time out from the forum.

Could you also take a few moments to Learn How To Use The Forum.

Other general help and troubleshooting advice can be found here.
It will help you get the best out of the forum in the future.

This was posted again in response to a comment made on my original post - if this forum had a delete post option I would happily delete both posts and then go elsewhere to seek assistance.

How are you powering all these LEDS? Are you trying to drive them all from the arduino or have you got a separate power supply?