I'm not sure why it auto updates to the wrong version. The driver is still very much a work in progress, and there was a big change made to it after 8.90.6, which prevents the older addon from working.
You can keep updates disabled for now, there won't be any more updates to it on the official LE repo.
I have updated my Vorke z6 to CoreElec 8.90.0.
The FD628 Display service version 1.1.100 in CoreELEC Add-ons 9.0.0 repository is still working wrong. The only way to make my display work properly, showing all the symbols, is by installing the version 1.1 you pointed me.