I have two laptops - a new Win10 and an older free upgrade from Win7.
I've just used my new one to read advice (!!!) from a Support Engineer but when I went to reply, all the heading boxes are blank apart from one.
No such problems on my older one. I has refreshed my browser not long before trying to reply.
Both PCs have been screwed up by WUs but not in the same way.
If you've a moment, would you see if you're having the same problems too please?