Has anybody gotten the Bullseye installer to work?

[Borden <borden_c@tutanota.com>]

I'm trying to build a custom live boot image with a Buster installer. This part of my auto/config file:

lb config noauto \
        --architecture 'amd64' \
        --archive-areas 'main contrib non-free' \
        --backports 'true' \
        --binary-filesystem 'fat32' \
        --binary-images 'iso-hybrid' \
        --bootappend-live 'boot=live locales=en_CA.UTF-8 keyboard-layouts=us keyboard-variants=dvorak persistence' \
        --bootloaders 'grub-efi' \
        --debian-installer 'netinst' \
        --debian-installer-distribution 'bullseye' \
        --distribution 'bullseye' \
        --firmware-binary 'true' \
        --firmware-chroot 'true' \
        --linux-flavours 'amd64' \
        --memtest 'memtest86+' \
        --parent-debian-installer-distribution 'daily' \
        --security 'false' \
        --uefi-secure-boot 'enable' \
        --updates 'true' \
        --win32-loader 'true' \

The Bullseye installer starts, but I get a kernel mismatch error when I try to get to the download the installer components. Is there a workaround for this or do I have to wait until the installer comes out of alpha?

With thanks,