Hope you are doing well and sorry for the trouble. Would you mind sharing more details about the issue you are experiencing?
- What is the workflow/steps you are doing? Please share a small video of the issue for a better understanding.
- What is the version of the Adobe Acrobat/Reader DC you are using? To check the version go to Help > About Acrobat and make sure you have the latest version 21.05.20058 installed. Go to Help > Check for Updates and reboot the computer once.
- Are you on Mac or Windows OS and what is its version?
- Is this a behavior with a particular PDF file or with all the PDFs? Please try with a different PDF file and check. If the file is stored on a shared network/drive please download it to your computer first and then try again and check.