First, those who moderate these forums with a Microsoft tag are simply that, moderators. They may try to answer questions, but their responses aren't typically based on experience. They post what they find in the Help files or repeat something they found
online. I've noted about 9 out of every 10 of their responses suggest reinstalling Office or Windows.
It may seem buggy, but it's not, now that I understand the cause. If you recall, one detail I noted when the Alt-Click functionality worked vs it not working was the presence of the AutoSave button on the Quick Access Toolbar. When it wasn't working the
AutoSave was present. It disappeared when my Alt-Click started working again. And when it reappeared, my Alt+Click stopped working again. The initial rollout of the AutoSave, which included the Modern Translator, had an issue and they rolled the update back.
This is why it didn't work, started working, and then stopped again.
Another reason some people can still use their Alt-Click is because they either don't have all Office 365 updates installed or they're using a non-O365 version of Office 2016. Non-O365 versions do not get updates.
As noted in my reply, Outlook didn't get the Modern Translator update. And upon checking, Excel and OneNote haven't been updated either. I suspect they all will at some point it will stop working in those apps. The reason Word was first is because translation
services are more likely to be used in it. I'm not sure if you're using Group Policy, but it can be used to return to the old Translation service which uses the Research pane. There's a link in my reply on how to do this.
I agree that it would've been nice to make users aware of this instead of us wasting a bunch of time trying to track it down. I reviewed the update details and didn't see the removal of the Alt-Click listed.
I can see why they got rid of it due to user complaints. I use the Alt key to make a vertical text selection and I usually trigger the Research pane the first time I try. It's annoying when that happens. Honestly, I'm surprised they didn't nix Alt-Click
before it was officially released. I attended the Office 2003 Launch Event in NYC and saw Bill Gates do a demo in Word 2003. I watched him get hit by a bug in the new Alt-Click functionality in the beta version he was using. He was demoing it and Alt-Clicked
an image and triggered a bug that put Word into a non-responsive state. I'm sure no one else recognized it or even noted he had an issue. It was only a matter of seconds before he pushed an "emergency" button that switched to another computer backstage and
no one was the wiser. The only reason I noticed is because I filed the bug. :-)