It is a very old bug. It doesn't matter which Mac OS or Illustrator version you have installed. After working a few doing charts, Illustrator stops accepting pasted data. Adobe doesn't care about as they doesn't care about copy/paste in place on artboards (another annoying bug).

This is pestering me for more than a month now. Whenever i need to cut or copy objects/vectors, It just won't paste. I had to undo stuff before trying again and again and again and againnnnnnnnnn just to work!! Its not on my hardware i suppose since copy paste outside illustrator is just fine. This bug in illustrator is such a headache that it decreases my efficiency in work by 50%!!!! And im so worried that if Adobe still refuse to fix this bug, I might break my keyboard with all this endless tries of ctrl C and V! And FYI I already tried all those recommended solutions in Adobe community and nothing works!!!!!!!!

Same here it is very annoying, I even chat with tech support and the only reset prefs, but then the issue came back!

Same here. Very annoying as it disrupts with my workflow. Had to open-close the project I'm doing multiple time every 2 minutes is crazy, as I mainly deal with text and typography in my work.

The copy paste function works as usual in other apps.

Updated comment for Admins.
Began when installing 28.0. I revert back a few versions and issue persists.
I have not installed any utilities or browser extensions.
Does not make a difference if I use menu commands or hot keys, or if I use copy when right clicking and using pop up menu. I can make a copy of text by using Shift + Alt and dragging. But cannot copy something inside of Illustrator and then paste text into a new or existing field.
The only time I can paste into an existing field is when I copy from another program, ie excel. I cant copy something in Illustrator and paste into another program. Its like illustrator doesnt save things to the clipboard if it is text.
Sometimes I can make it work if I clear the clipboard in windows 10, but other times I cant. So it is really random.
Would like a solution because reverting to older versions or updating to newer versions does not fix the issue. I am having to change workflow and add extra steps. Restarting only helps sometimes and just for a few copy if that. Unclicking boxes in the clipboard preferences does not make any difference.

Lately among the adobe programs the copy and paste text is working. it still doesn't go if I copy and paste into word or crome or just into notepad

I have the same issue. I can copy and paste object or text that has been outlined but I cannot copy and paste editable text.

Cut Copy and paste not working correctly or work sometimes with menu, but not with shortcuts

I have this problem too, it's really messing with my workflow. I tried different troubleshooting but all is good. I can copy-paste and cut-paste on other software without a problem, so I believe it's a problem with Illustrator.

I have the same problem. Please do something Adobe. ITS ANNOYING AND I COMPROMISE MY WORKFLOW.

This often happen with text box (I have to outline everything and then the program allows me to copy and paste).

I have already tried several times with erase the clipboard and also with restore the preferences (Edition --> General). Those two methods sometimes work, but lately this bug got RANDOM and right now is happening again and nothing is working, I DONT WANT TO RESTART THE PROGRAM.

Again, ANNOYING AND IM PAYING FOR THIS!

I have the same problem. Please do something Adobe. ITS ANNOYING AND I COMPROMISE MY WORKFLOW.

This often happen with text box (I have to outline everything and then the program allows me to copy and paste).

I have already tried several times with erase the clipboard and also with restore the preferences (Edition --> General). Those two methods sometimes work, but lately this bug got RANDOM and right now is happening again and nothing is working, I DONT WANT TO RESTART THE PROGRAM.

Again, ANNOYING AND IM PAYING FOR THIS!

I have the same problem. Please do something Adobe. ITS ANNOYING AND I COMPROMISE MY WORKFLOW.

This often happen with text box (I have to outline everything and then the program allows me to copy and paste).

I have already tried several times with erase the clipboard and also with restore the preferences (Edition --> General). Those two methods sometimes work, but lately this bug got RANDOM and right now is happening again and nothing is working, I DONT WANT TO RESTART THE PROGRAM.

Again, ANNOYING AND IM PAYING FOR THIS!

I have the same problem. Please do something Adobe. ITS ANNOYING AND I COMPROMISE MY WORKFLOW.

This often happen with text box (I have to outline everything and then the program allows me to copy and paste).

I have already tried several times with erase the clipboard and also with restore the preferences (Edition --> General). Those two methods sometimes work, but lately this bug got RANDOM and right now is happening again and nothing is working, I DONT WANT TO RESTART THE PROGRAM.

Again, ANNOYING AND IM PAYING FOR THIS!

I'm having problems with copying and pasting any object. Every time I need to undo the action and copy again the same object to be able to paste, because the first copy/cutout, that shows me the action actually exist, the program does not allow to paste the object.

hello Egor
no, I didn't install extensions utilities. the problem started from the installation of this latest version.
it makes no difference if i use the keyboard or the menu to copy and paste. The problem is only in the text because everything else (objects, images or other) copy and paste it without problem.
I can't copy text from Illustrator and paste it into other applications. From other applications to Illustrator does.
On first startup it works, then suddenly nothing more.
If you repeat copy from menu several times then paste.
I have disabled SVG Code

Vincenzo, please tell more. The problem is not new, happens sometimes for different users, but the cause of it is often different.
Have you installed any utilities or browser extensions recently?
Does it make any difference if you use menu commands for that or hotkeys?
Does it help if you copy several times in a row?
Are you able to copy and paste in other applications?
Does it help if you disable Include SVG Code option in Preferences > Clipboard Handling section?

I can no longer copy and paste text into illustrator. HELP

I have Illustrator 27.4.1 on a DELL Precision 7560 and this is the first time I encounter this problem.

It has been since recently that the objects that are copied or cut are not being pasted after using CTRL+P, CTRL+F or CTRL+B. As other people have mentioned, it is indeed randomly that the problem occurs and it is very frustrating in certain situations where you have to copy paste things repeatedly.

Please look this up and fix it because the community needs these simple functions in order to work efficiently and quick.

This has been an issue for years, judging by the unresolved Reddit / Adobe forum posts. It's infuriating, such a basic and needed feature doesn't work! I find it super annoying, 4 out of 5 times it doesn't paste.

Also, when I just quit Illustrator this message appeared in After Effects:

After Effects (Beta) error: could not parse mask shape on clipboard.