while pressing on attachment window stuck on loading

Hi Dudu29382261cf9p,

Thank you for reaching out. 

Please try repairing the application installation. In Acrobat, go to Help > Repair Installation. 

Ensure that the application is updated to the latest version. 

If the issue still occurs, please try once reinstalling the application using the following steps:

-Remove the application and run the cleaner tool (https://www.adobe.com/devnet-docs/acrobatetk/tools/Labs/cleaner.html).
-Reboot the machine
-Install Adobe Acrobat from the following page: https://helpx.adobe.com/acrobat/kb/acrobat-dc-downloads.html.

Let us know if the behavior does not change.

Thanks,

Meenakshi