Blank Install Updates Window

[bonnevie]

I'll keep an eye on this thread as I was the one having this problem in a previous thread. Unfortunately, it was only solved for a day or two.
The only personal observation I can add here beside the fact it looks like a canadian problem:-) is that I started having blank updates when HTML output was added to LL Updates. And yet there are very few of us having this problem so...maybe I'm on the wrong track with this.  I will follow Trinidad & Jerry's suggestions for the next couple of days and report back.
https://imgur.com/a/mYIDX
Edit: blank screen only occurs in my old machine.  OK with my 2 newer setups