Starting in late November Chrome stopped working with J2018. Jaws simply would not focus on any web content. All still worked fine in J18.
After repairs, re-installs, updates and several sessions with VFO tech support, I finally gave up and used J18 only.
I am pleased to report that after installing most recent update, J2018 works fine in Chrome.
In the event any others had this problem, I urge you to install latest 2018 update.