Excel object in my Word doc > can't edit object inside Word.docx

[ShinyaUeda]

PROBLEM:

I can no longer edit Excel objects inside my Word doc.  Office 2016 on Windows10.

Now it opens the Excel object in a new Excel window (outside Word).

1 > I have to X close the new Excel window for the edit to show up in Word.

2 > No longer able to adjust which cells to show/hide.

       (by clicking excel object once, then dragging the border to snap between rows/columns). 

ALREADY TRIED:

>PC restart safemode and tweaking

>Create a New Word Document > insert Excel spreadsheet

>Microsoft Tech support - restart > safemode > tweaking

>Microsoft Tech support - Office re-instal

"We re-installed your Office 2016 from your Microsoft account. performing a rollback to its older version it not the best option right now sine we cannot verify what is the build version when it was still working. "

"We can only try some basic troubleshooting steps for Office applications. if the issue still persist after this then you may check from our Excel community. "

HELP 

P.S. This issue has happened in the past, but PC restart used to resolve it. This time its permanent...

Found similar thread from 2018 but unresolved
https://social.technet.microsoft.com/Forums/en-US/6413f135-9c7c-4553-b01d-0a9e7e358395/word-with-emb...

Found similar thread from 2018 - but his tech support guy fixed without providing a how to..
https://techcommunity.microsoft.com/t5/word/excel-object-in-word-template/m-p/202755

[#2]

@ShinyaUeda 

I have exactly the same problem. Had a previous situation last year. Fixed it by just using one monitor (known problem). You might try that. But now, the problem is back. + sometimes excel calculation results are not visible in Word document.

Already tried:

• Using two monitors, and returning to just one
• Repairing my whole office package
• Rebooting several times
• My document works fine on my colleague's PC with the same Word version