Mount error with persistence file

[avggeek]

I deleted the file on the USB key and re-copied persistence_ext4_1GB_casper-rw.dat as suggested. The md5 hash for the re-copied file seems identical to the string mentioned below - see screenshot:

---

I tried swapping the persistence file to persistence_ext4_512MB_casper-rw.dat and modified the config as follows:

Code:

    "persistence": [
        {
            "image": "/Boot_an_Operating_System/ubuntu-21.10-desktop-amd64.iso",
            "backend": [
                "/ventoy/persistence/persistence_ext4_512MB_casper-rw.dat"
            ]
        }
    ]

Ubuntu ISO stops with the same error message. Is there some known incomptability with using persistence in Ventoy booted via VirtualBox?