So, earlier after I permanently set it, I tested Cognos and it worked then I enabled 2 extensions, Malwarebytes Premium and Total AdBlock but didn't think to try Cognos. I tried Cognos again and it didn't work. So, I disabled the Malwarebytes one first because Total Adblock I actually just installed today, relaunched Vivaldi in private mode and Cognos worked. It also allowed my Settings window to open, go figure π So I tried disabling Malwarebytes in Edge since it isn't running incognito but Cognos didn't work properly. I opened a ticket with the vendor and they saw it happening on my machine but they could never duplicate it and they spent hours trying. Up until today, I had to "swivel-chair" to my Macbook Pro to use Cognos on Safari because it works there, but that's painful, lol. Anyway, at least I know I can now run it in a browser on my PC without having to "swivel-chair" back and forth. Thanks for the tip! Really appreciate it.