Jailbreak not (fully) working on the latest firmware of Touch Lux 5

[Octopus1348]

I stupidly updated my PocketBook Touch Lux 5 to U628.6.8.3090 without removing the jailbreak first. The update failed and when I turned on the PocketBook, the touch screen didn't work. When I tried to transfer data, I got the popup that asked me if I wanted to transfer data, but I couldn't choose anything. Luckily, the Wi-Fi still worked and I was able to send a swupdate.bin file (downloaded from the official PB website) to revert to the previus firmware version using this command:

sshfs -oHostKeyAlgorithms=+ssh-rsa root@192.[IP here]:/mnt/ext1 ~/Downloads/sw_20220720_U628_6.5.2890_user/

The downgrade was successful. I removed the jailbreak and updated without a problem. Now when I try to install the jailbreak, the PocketBook reboots like normal, but the jailbreak settings entry is nowhere to be found. And when I try to connect to the PocketBook with ssh, I get the error ssh: connect to host 192.[IP here] port 22: Connection refused. I still can use PBTerm to log in as root though.

It's possible that part of this exploit was fixed.