Red Line always at left of Art Board

[brandond62546257]

After the most recent update to Illustrator (v 27.3.1), I now have a red line on the left side of all art boards. This occurs when opening any file, even ones created before the update.

The red line is not selectable, I have confirmed that I do not have bleed lines on, and I have tried turning off any guides to see if the line would go away. The red line stays in place and does not follow if I move the art board, but it will return to the left of the art board after saving the file. The red line does not show in preview and hasn't been a visual issue in any of my final PDF documents.

I tried searching for a community post with anyone else having this issue, but I have so far not had any luck, nor found any resolution.

The red line does not hinder my ability to use Illustrator, other than it being an eye sore and a distraction. But, I would love for it to be gone. Any assistance would be greatly appreciated.

Thank you!

[Ton Frederiks]

Do you have any plug-ins installed?

[Anubhav M]

Hello @brandond62546257,

We understand that encountering technical issues can be frustrating. We are here to help and would like to suggest trying to reset Illustrator's preferences as described in this article (https://helpx.adobe.com/illustrator/kb/troubleshoot-preference-issues.html). If you don't mind, could you please follow the steps and share your observations with us? We appreciate your time and effort in helping us resolve this issue.

Looking forward to hearing from you.

Thanks,

Anubhav

[kirkw67592843]

I have the same exact issue on 4 machines at my shop.

Has an answer been determined? Glitch bug?

I think we can rule out resetting preferences when it is occuring on 5 machines?

It is very annoying.

[Ton Frederiks]

And can we rule out plug-ins?

[kirkw67592843]

It was never an issue until the last update.  My plugins haven't changed.

[MyBrand]

I am also having the same problem on all the computers at my shop. The only plugin we use is Kongsberg Ai-Cut for registration Dots.

[Monika Gause]

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@MyBrand  schrieb:

I am also having the same problem on all the computers at my shop. The only plugin we use is Kongsberg Ai-Cut for registration Dots.

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Is the problem gone when you uninstall that plugin? If so, then please contact Kongsberg

[Monika Gause]

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@kirkw67592843  schrieb:

My plugins haven't changed.

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Often plugins have to be updated and adjusted for the new version of the host software. So have you discussed this with the manufacturer of the plugins?

[Met1]

Ignore this... Guess who beat me to the answer!

Forum people: a delete post would be nice...

[Egon GW · Accepted solution]

It's the Ai Cut plugin from Kongsberg. It's some kind of warning that Webcenter plugin isn't installed! If you select an other tool the line will dissapear! So wait for the updated version of Ai-Cut!