When Acrobat has been launched, for instance by opening a PDF from Internet, or from within Outlook, I always need to close it first before I can open a 2nd PDF file.
It is not possible to launch Acrobat a 2nd time then.
It is not a big thing, just something to remember.
However, occasionally I might have forgotten that: Acrobat was launched a while back and I forgot that it was/is still running and I am then vainly trying to open another PDF file.
Is this a 'settings-matter'?
I'm not sure that this will address your issue or not, but it might be worth a try. In Acrobat, go to Edit>Preferences, and click the General category on the left. Then turn off the Open documents as new tabs... setting. After restarting Acrobat, try your scenario again. Maybe this will do the trick.
I hope this is useful.
Hello to you,
I gave it a few tries and this indeed seems to solve the issue.
Again, many thanks for the quick response.