[SOLVED] Persistence with Ventoy 1.29 and Mint 20

[SmackDown]

I successfully had persistence working with an earlier version of ventoy and Mint 20 but now with Ventoy 1.29 it does not seem to work .
Here is my json file. If I check under tools using the F5 key on boot it says persistence is working but files do not seem to persist after a reboot

Code:

{
    "persistence" : [
       
        {
            "image": "/ISO/linuxmint-20-cinnamon-64bit.iso",
            "backend": "/Persistence/Mint-Persist.dat",
            "autosel": 1
        }
    ]
}