A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
My Office is up to date (in fact, it restarted itself at an inconvenient time yesterday to apply more updates), my Windows is up to date. By now it is blatantly obvious to everyone not working for Microsoft that one of the Windows Updates -- either KB3197954 or one of the others from that date -- broke this feature's functionality with respect to Excel. It's not drivers, it's not outdated software, it is directly from a Microsoft-supplied update.
If you have Office 2016/Office 365 and Windows 10, and everything's up to date, the Scroll Inactive Windows feature will not work for you if one of the Windows in question is Excel -- if Excel is the active window, it will not scroll other windows, not even other Excel ones; and if another window is active, it will not scroll any of the Excel windows, including and even within the VBA environment. Give it a try; it won't work. Then run whatever tools and diagnostics you want, hand those results over to your developers, and tell them to fix it.
Time to stop treating your customers as beta testers.
Al,
You summed that up beautifully. I don't think it can be any clearer.
Microsoft, listen.