As I said, there is a fix. Carenado (and possibly other vendors) broke it by using the old default code that didn’t have the stroke information in it. Asobo’s code still works, unless you have an addon that did what Carenado did. Review the Devsupport thread all the way to the bottom. I’ve gotten it working again in my liveries.
I’m trying to figure out how to add a “stroke-linecap: square;” tag to the css so I don’t get rounded corners on the stroke line.