Hello @brett_5136,
Thanks for letting us know that Illustrator worked under the other account. Would you mind trying to manually reset Illustrator's preferences under your primary and checking if it helps:
For macOS
• Close all Adobe applications.
• Go to the following locations
• ~/Library/Caches
• ~/Library/Application Support/Adobe
• ~/Library/Preferences
• Rename Adobe Illustrator, com.adobe.illustrator and Adobe Illustrator 29 Settings folders to Adobe Illustrator.old, com.adobe.illustrator.old and Adobe Illustrator 29 Settings.old
• Launch Illustrator from the Creative Cloud.
Note: The location starting with this "~" sign indicates the hidden User Library. So, you need to copy and paste the exact path in Spotlight search or from Finder Menu > Go > Go to Folder > Paste the location in the dialog box.
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Disclaimer: Please note that renaming preferences folders will remove all the custom settings, and Illustrator will launch with default settings. You can also save a backup of the folders, the location of which is mentioned above.
Looking forward to hearing from you.
Anubhav
The user let me know it started working again. We will continue to monitor.
Thank you for the all the assistance.