Adobe Portfolio website / TV web browser incompatibility?

I have an LG OLED TV. My Adobe Portfolio web pages loaded perfectly in the TV's web browser up until a few days ago. Now they do not. No system changes that I am aware of - perhaps there was an automatically applied software upgrade on the tv. All other non-Portfolio websites load fully on the tv - Adobe Portfolio pages seem to be the only ones affected. Not only my web pages but also ones created by a friend that I also cannot load. No problem with loading the Portfolio web pages on other Internet devices. An LG support agent told me to reset the TV to factory settings. I am reluctant to do that straightaway as I would then have to reload a bunch of stuff and I have some doubt that doing that would fix the problem that affects only websites that are generated from Adobe Portfolio. Any ideas and suggestions on what would be causing this problem and how I might overcome it before I go to the factory reset on the TV? 

The web pages partly load. I get only a grey screen but when I move my pointer over the screen I can see that the page web links or urls change but nothing happens when I click on that point to load the next page.