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48

Fonts changing in files when opened in Illustrator 29.5.1

Community Beginner ,
Jun 06, 2025 Jun 06, 2025

I've experienced this twice now, both times in the last month. I design beer labels and I'll often open an older label and use it as the template for a new one. When I open the older file (an .AI file), it will load, and most of the live text will have switched to a different font arbitrarily. Some fonts switch to OTHER typefaces that exist in the same document, others switch to different weights of the same font, and still others switch to defaults like times and myriad.  Some of the switched fonts are stored locally, and others are served via Adobe Fonts. The file does this consistently even after I've restarted illustrator and restarted my computer. 

 

I've attached a screenshot of one of the files with its original fonts (from an outlined version for print), as well as a shot with the changed fonts.

 

Has anyone else experienced this?

 

System:

2022 Mac Studio M1 Max

MacOS Sonoma 14.6.1

Illustrator v 29.5.1

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Bug , Type
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correct answers 1 Pinned Reply

Adobe Employee , Aug 18, 2025 Aug 18, 2025

Hello everyone,

We are sorry for the trouble. We are having debug sessions for this issue with the product team, as we are unable to replicate the issue on our end. Would it be possible for you to have a debug session with us? If yes, please share your Adobe email ID, Phone number with country code, preferred time & day for the meeting, your timezone, and country & state you live in over the DM only.

I will be looking forward to your response.

Anubhav

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replies 234 Replies 234
Community Beginner ,
Aug 19, 2025 Aug 19, 2025

This is the link to the thread where I first posted (via the creative cloud app/help/ask the community) :

https://illustrator.uservoice.com/forums/601447-illustrator-desktop-bugs/suggestions/49871712-fonts-...

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Community Expert ,
Aug 19, 2025 Aug 19, 2025

I have also seen this report with more detailed steps to reproduce:

Illustrator randomly substitutes fonts even though they are installed (works fine in older versions)...

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Explorer ,
Aug 19, 2025 Aug 19, 2025

I want to show you one screenshot hoping it will help you in debugging this. This file was save with 29.7.1. I reverted back to 29.0 now. Even if I open with 29.0, the problem still exists. But I noticed something funny. As you can see when I move the cursor on the text, eventhough the fonts are displayed incorrectly (very wide), the underline that indicates the cursor over shows the correct width of the original fonts. This means Illustrator still recognizes the original fonts but just displays the wrong one. I hope this helps in some way.

 

Screenshot 2025-08-19 at 8.43.43 AM.jpg

 

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Participant ,
Aug 19, 2025 Aug 19, 2025

Anubhav M  ==>  Users are still reporting the random font substitution bug in Illustrator on the Mac and on the PC, in versons 29.5.x, 29.6.x,  and 29.7.x,  from all over the world, with translations even required to read the posts from users in Spain and Japan for example.... and the Adobe team can not replicate the issue in San Jose after a couple of months worth of worldwide input?  I think that I can speak for the world when I say that's quite unfathomable.  How about this: fly three or four of us out to San Jose and put us up at the Westin for a few days, and we can bring the Illustrator random font substitution bug to you at Adobe headquarters with our multiple windows laptops and Macbook Pros.  You will then be able to replicate the issue in spades on your end, and just maybe find a solution. 

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New Here ,
Aug 19, 2025 Aug 19, 2025
Well said my friend!




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New Here ,
Aug 20, 2025 Aug 20, 2025

I´ve had the same issue for a month now, and I´ve changed manually the fonts but it keeps changing enverytime i open my file. How can i solve this problem?

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Participant ,
Aug 20, 2025 Aug 20, 2025

Try going back to 29.4, it seems to be last bug free version before this mess started.

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Participant ,
Aug 20, 2025 Aug 20, 2025

Downgrade to version 29.4.

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Community Beginner ,
Sep 03, 2025 Sep 03, 2025

It's still happening in 29.4 for me

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Community Beginner ,
Aug 28, 2025 Aug 28, 2025

I am having the same issue in version 29.7.1

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Participant ,
Aug 28, 2025 Aug 28, 2025

Downgrade to 29.4 and your Illustrator life will be back to flowers and unicorns.  Any version beyond that is hosed until they fix the devastating random font substitution bug, which they have thus far been unable to fix for at least two months and counting.

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Participant ,
Aug 28, 2025 Aug 28, 2025

Don't worry, I suspect they have their artificial intelligence working really hard on it. 🙄

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Community Beginner ,
Sep 03, 2025 Sep 03, 2025

I downgraded to 29.4 and it is still happening with files that didn't have this issue before, not just the ones I opened in 29.7

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New Here ,
Aug 29, 2025 Aug 29, 2025

I created a mailer in Illustrator with around 10–12 artboards and exported everything perfectly with the correct fonts. When I reopened the same file after two days to make changes, all the fonts had changed automatically, some text had disappeared, and the layout no longer matched my earlier exported JPGs. The fonts were installed and displaying correctly at the time of the first export, so the issue only appeared after reopening the saved file. I’ve attached the before/after GIF to show the difference.

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Participant ,
Aug 29, 2025 Aug 29, 2025

Welcome to the nightmare that is using Adobe Illustrator now. This issue has plagued hundreds of designers worldwide for the past few months without any satisfactory resolution.

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New Here ,
Aug 30, 2025 Aug 30, 2025

It's quite unbelievable that Adobe are unable to fix such a devastating fault in Illustrator, and even moreso that they are "we are unable to replicate the issue on our end".

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New Here ,
Aug 31, 2025 Aug 31, 2025

If you delete the latest updates and reopen the file in 29.4 it often resets?

Thes is a major problem for an industry that has propped up Adobe for many years.

And Adobe are so incompadent thay continue to promote the updates after 29.4 despite the fact that the program is broken?

Adobe please dedicate some time and money to this!

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Explorer ,
Sep 02, 2025 Sep 02, 2025

This is still an issue??! I rolled back to 29.4 and haven't checked this thread for a while. 

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Community Beginner ,
Sep 02, 2025 Sep 02, 2025

Unfortunately, yes. Adobe responded on 8/18 that they're still working on it 😞

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Community Beginner ,
Sep 03, 2025 Sep 03, 2025

Still happens in 29.8.0 - just did a screen capture opening a file – save as to desktop and then reopening the newly saved version. Fonts are changed and tracking displayed incorrectly.

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Participant ,
Sep 03, 2025 Sep 03, 2025

Thanks for saving us all the trouble of downloading another defective version of this nightmare product.

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New Here ,
Sep 03, 2025 Sep 03, 2025

I have the exact same problem. I tried opening it with Adobe 2024, but the same thing happened.

I hope you fix this soon, as it affects tons of projects and the workload.

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Participant ,
Sep 03, 2025 Sep 03, 2025

G. C.34684083a2u4 - Files started in or duplicated from any version beyond Illustrator 29.4 are potentially HOSED,. Any files created or saved with any version after 29.4 should be avoided.   Files originally created in 29.4 or any previous version of Illustrator will be fine, and will not experience the deadly random font substitution bug that Adobe has been unable to fix thus far.

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New Here ,
Sep 05, 2025 Sep 05, 2025

This is happening to me too!!! It happened once, and I thought it was some freak thing, but now it's happened again and I'm really frustrated. See attached 2 files. A is how it was originally designed and how it appears in Adobe Acrobat. B is how it's re-opening in Illustrator. 

 

Can I have a de-bug session too?

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New Here ,
Sep 07, 2025 Sep 07, 2025

This happens to me also. It's driving me crazy! Please help, I can't work like this!

 

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