I experienced this issue yesterday 5 minutes after using the pencil tool. Today, I used it for 1.5 hours before it failed. The fact that it happens so randomly is INFURIATING!!!!!!!!

I can't believe this continues to be an issue! SO FRUSTRATING!!!!

I wonder whether anything on a newer Mac with Apple silicon is experiencing this?

Still an issue on version 28.5. One particular way to reproduce this for me seems to be:

* Use the pencil drawing on my iPad as extended display
* Move the cursor from the iPad to my main Illustrator window on a different monitor -- at this point in time, I get the error message. I can still switch to and use other tools, but can no longer use the pencil.

Same issues as reported below, absolutely unacceptable resolution pace, Adobe. Maximum frustration with your product, maximum dissapointment in your service.

It's happening and I updated to 2024 version. Obviously, Adobe doesn't care or they would have fixed it. I'm working with iMac so unable to change monitor It happened with a prior version of Illustrator but quit temporarily when I updated to 2023. Then it started happening again and also with 2024. I can't work without the pencil tool and I have immediate deadlines.

Today, only rebooting the Macbook seems to help. This is costing me hours a week.

Other tools continue to work.

On Illustrator 28.0 on macOS 14.2.1 (as well as earlier versions), after a while (between minutes and hours) of working extensively with pen and a handful of other tools, heavily using layers:

When selecting the pencil (via mouse click or the N button on the keyboard), and then moving the cursor on(to) the artboard, an error message is thrown and use of the pencil is impossible. None of the suggested help articles under "More Info..." help, but a restart of Illustrator will usually fix the issue for a little while.

I have two windows open of the same file, one on an external monitor driven by the MacBook Pro (16-inch, 2019), and one on an iPad Pro connected via WiFi "Screen Mirroring". The lid of the MBP itself is closed.

I'm having this issue as well. Really tired of this impairment. It's an everyday thing, multiple times a day.

Same here. :-(

I can repeat the problem by rotating the canvas then un rotating it. I use a wacom display. t6his hurts my work flow

I have the problem a lot when using the pencil tool to edit a path. after a reboot of the program it works until it don't again. I get it often when edit a path on a simi-complex file. I got it one time after I drew a spiral. this really effect my work.

Yes, you can send the file over to sharewithai@adobe.com — the team reads it all the time, but I personally doubt this can help, since you both say it’s not file-specific... correct?
Again, you were not able to verify if disabling the second monitor change anything. The bug is rare enough, and limiting it at your side can be very helpful for the team. Try to work with your MacBook only and unplug temporarily your Apple Studio Display.

Is there any way I can send you my file and have it tested to see if your team can replicate the error?? This is insane.

Switched from AI 2023 to AI 2022. Was able to work for an hour before getting this error again. Now I've quit AI 2022, and will be relaunching, only to know that literally any time, I'll get this error again, and will have to repeat this process again. And again. AND AGAIN. AND AGAIN.

Issues still persist. No logical pattern; it's all seemingly random. The only common thread is the use of the pencil tool. THIS IS SO INFURIATING.

The plot thickens :(
Thanks for keeping it updated...

I would like to add the AI 2023 seems to be less stable with regard to this issue than AI 2022. Example: I was working in AI 2022 using the pencil when I encountered this error. I quit, then opened the file in AI 2023 and began using the pencil tool again. Literally the 2nd time I selected the pencil tool, I got this error. At least in AI 2022 I get a few minutes — and sometimes a few hours — of usage out of the pencil tool before getting this error.

Repeated issues with this today. But now it's happening sooner (doesn't take hours to fail), and way more frequently. The only workaround — and it's a ****** workaround — is to quit and relaunch Illustrator. Imagine being on a deadline, and having to do this 5, 7, 10 times a day, just to be able to use one tool that is required for the project. Imagine how much wasted time you'd have after several weeks and months of this.