Rancher UI with newer Hetzner Node Driver

[smirnov-mi]

Hi guys
I've been using v2 UI js in the Rancher (v2.5.x - 2.7.1) since it was available, and it worked fine with the node driver v3.7.1.
Now as I tried to use newer version of the node driver, I ran into the UI issue, where the Rancher just wouldn't show the node's details as I try to install a new cluster. I see this behaviour with node driver versions higher than 3.8.1. The Driver itself is reported as working well.
JonasProgrammer/docker-machine-driver-hetzner#96
Has anyone faced smth similar or has an idea how can I trace down the error?
cheers Mike