Recently I encountered a problem when I want to send a file directly by email. When I click on the icon, an empty white menu opens.
I haven't found a solution to this problem at this time, if anyone had a solution to fix this, that would be great.
Thanks in advance.
Hope you are doing well and sorry for the trouble,
The new version 21.11.20039 for Adobe Acrobat/Reader DC is now available. Please try to update the application from the help menu > Check for updates and reboot the computer once and check if that works for you.
You may also download the patch manually from the link https://www.adobe.com/devnet-docs/acrobatetk/tools/ReleaseNotesDC/index.html
Let us know how it goes