Write to a labeled value display whenever needed from python blynk library

Need Help With My Project
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Hey everyone. Recently I have been experimenting with the Python Blynk Library on a raspberry pi. I have successfully setup the library and have gotten the library mostly working. I am able to get data from a gps, button, display a value at the start of the program and send notifications. One thing I am struggling on is writing to a Labeled Value Display whenever I have data that needs to be updated. For example, when I first run my code, I set the display to “nothing”. I want to update the value display with coordinates from the gps whenever I receive those coordinates. I tried calling

blynk.virtual_write(10, 'new string')

but the display never seems to update. I have tried it a couple others ways as well, using a global variable and setting the display to update with the global variable every second, but nothing seems to work. Is this possible or am I just oblivious to an obvious solution? Any help is appreciated. Thank you! I will attach my code below for help.

import BlynkLib
import time
import gpiozero as gpio

ledP = gpio.LED(20)

BLYNK_AUTH = '' #PROJECT
BLYNK_AUTH_APP = '' #APP

# Initialize Blynk
blynk = BlynkLib.Blynk(BLYNK_AUTH)

lat = None
lon = None
steps = 0
Value_display = "Nothing"


@blynk.VIRTUAL_READ(10)
def v10_read_handler():
    global Value_display
    blynk.virtual_write(10, Value_display)

@blynk.VIRTUAL_WRITE(11)
def my_write_handler(value):
    global lat,lon,steps, Value_display
    if steps == 0:
        lat = value
        steps = steps + 1
    elif steps == 1:
        lon = value
        steps = steps + 1
    elif steps == 2:
        steps = steps + 1
    elif steps == 3:
        steps = 0
        latlon = (lat, lon)
        print(latlon)
    elif steps == 4:
        steps = 0
        latlon = (lat, lon)
        print(latlon)
        Value_display = 'String 2'
        blynk.sync_all()
        v10_read_handler()
            
    
@blynk.VIRTUAL_WRITE(20)
def my_write_handlers(value):
    print('Current button value: {}'.format(value))
    print(value)
    if value == "1":
        ledP.on()
        #blynk.notify('You pressed the button and I know it')
    else:
        ledP.off()

    
@blynk.VIRTUAL_READ(21)
def v21_read_handler():
    # Display a Gauge
    import random
    rannum = random.randint(1,20)*5
    print(rannum)
    blynk.virtual_write(21, rannum)

    

blynk.run()

Github link for easy downloading of code : Github