Trouble creating automation or scripts

I’m a home assistant newbie running a fresh install, and I’ve made some progress but I can’t seem to figure out if there’s something I did wrong or there is something wrong with the installation, which is 0.58.1 running on a Pi 3.

I have several sensors installed and working, and now I’m trying to do something, but…

When I go to Configuration, and try to create a new Automation or Script, those pages don’t seem to work - the script won’t be saved, and the various drop-downs and buttons don’t really seem to be working right. I get this error in my browser console:

TypeError: this._updateComponent is not a function

Happens with latest IE11/Firefox/Chrome, I’m on Windows 10.

Looks like 0.59.1 resolved the issue.