@Sepsis
I haven’t tried it yet, but it’s worth a shot: flashing the latest iodé recovery v6.9 before the update v6.9.
Unzip iode-6.9-20251105-apollon-ota.zip
fastboot flash recovery recovery.img
fastboot reboot recovery
adb -d sideload iode-6.9-20251105-apollon-ota.zip