Create PDF and then asked to create another PDF by Acrobat Reader

Hi Folks,
When I use 'Microsoft Print to PDF' to create a PDF, I then get another window opening prompting me to save the file again.
For example, I may have an email I wish to save so I use 'Microsoft Print to PDF', create a name and save. Acrobat Reader then opens and a 'Save As' dialogue box opens up.
If I check the original document, I can see that it has already been saved/

How can I stop this?

I am using a MSWin 11 machine with all updates applied. This has been happening for quite a while.

Any help would be appreicated.