/home fails conversion on new installation

I reinstalled my oled deck, it has 2 tb ssd.

I am trying a full conversion, root and home to btrfs. I just reinstalled steamos, logged into the system (stable branch), enabled SSH and executed the script from a console.

I have tried it several times, always with the same result, root is converted but home remains in ext4. Sometimes even gets in a loop with the /home mounted as /tmp and not recovering from that.

I also tried with the option to format /home, as I don't care about the data this being a new installation -> this is what causes the /tmp loop.

Previous to this I have been using btrfs on two different decks for some years with no issue, this one included.