Acrobat Reader updated and now will not display files correctly...

Acrobat Reader updated at work from 2021.001.20150 to 2021.005.20058

Prior to the update, I would open a .pdf file and it would appear fullscreen (like it should). Clicking on a link would open a new file, fullscreen in a new window. Closing that window, the original file would be displayed, still in fullscreen.

Now, with the update, when closing the new window, the original file is NOT displayed fullscreen.

This is bad. I need the updated version to operate as the old one did! With the new version operating the way it does, my touchscreen information system is useless.

Our IT person reverted the computer back to the old version and it worked fine, but the computer did an outo update and took me right back to the problem version.