Illustrator problem: Copy & Paste

In Ai you can also copy/past with F3/F4. Does it works? How you check that object has been copied ("I select an object and press CTRL+C, it doesn't copy.")? Also if you past continiusly app copy and past object in the place after second time. 

Make sure your keyboard prerference /input source is in correct language. I was testing so meo other languages and this happened, but belive your issue might be corrupt preferences.

PREFS  RESET MAC (thorough method)

Quit Illustrator

Finder >> Shift Command G

~/Library/Preferences/Adobe Illustrator 27 Settings/en_US/Adobe Illustrator Prefs

rename Adobe Illustrator 27 to Adobe Illustrator 27old

PREFS  RESET MAC (other)

Quit Illustrator

Finder >> Shift Command G

~/Library/Application Support/Adobe/Adobe Illustrator 27/

rename Adobe Illustrator 27  to Adobe Illustrator 27 old

Check your clipboard settings

These are the apps and settings that have been identified in this forum to mess with Illustrator 

• Parallels Toolbox running with the Clipboard History
• TeamVewer Clipboard > Use Shared Clipboard
• Apple iOS device simulator from Xcode
• Windows Multi-clipboard
• Windows Clipboard History
• Chrome Remote Desktop
• Mouse Pointer Highlighter
• AnyViewer
• Pastebot app
• Overzealous antivirus (Digital Guardian) as well as viruses that empty the clipboard

Does the problem persist after re-launching Illustrator or rebooting the computer? Are other applications running at the same time as Illustrator? Do you have any software installed that does clipboard management or enhancement tasks that might interfere with traditional clipboard operations, such as the Ctrl+C keyboard shortcut?

<moved from cc desktop bugs>