Ram allocation Forge server in user_jvm_args.txt

[Toshi]

I am trying to allocate more ram to forge but it does not seem to be working 

I am trying to set a limit of 12G of memory, but it looks like it's just with a max of 7GB

here is what the user_jvm_args.txt looks like

# Xmx and Xms set the maximum and minimum RAM usage, respectively.
# They can take any number, followed by an M or a G.
# M means Megabyte, G means Gigabyte.
# For example, to set the maximum to 3GB: -Xmx3G
# To set the minimum to 2.5GB: 
-Xms2500M

# A good default for a modded server is 4GB.
# Uncomment the next line to set it.
-Xmx12288M

right now, the GUI say that i have 15% free memory at 4458 mb of memory the free memory should be more with a limit of 12 GB of memory 

I just don't understand why it not obeying the arguments that are in the user_jvm_args.txt

i am running ALL THE MODS 7 on their latest update for it forge 1.18.1-39.0.88

on a windows 10 system. 

any help will be apricated with this, thanks