Hi there,
Sorry about the delay. I am hopeful that the issue was fixed. If not, we have recently released an update for Illustrator 2020 (v 24.2) which contains some stability fixes. If you are not already on v24.2, then we recommend you to update to latest version and let us know how it goes.
If that doesn't help, you may also try resetting preferences by following these steps:
For MAC
- Close all Adobe applications.
- Go to locations
- ~/Library/Caches
- ~/Library/Application Support/Adobe
- ~/Library/Preferences
- Rename Adobe Illustrator, com.adobe.illustrator and Adobe Illustrator 24 Settings folders to Adobe Illustrator.old, com.adobe.illustrator.old and Adobe Illustrator 24 Settings.old
- Launch Illustrator from the Creative Cloud.
For Windows
- Close all Adobe applications.
- Go to Location C:\Users\user\AppData\Roaming\Adobe
- Rename Adobe Illustrator and Adobe Illustrator 24 Settings folders to Adobe Illustrator.old and Adobe Illustrator 24 Settings.old
- Launch Illustrator from the Creative Cloud.
Please note that resetting preferences will remove all the custom settings and Illustrator will launch with default settings. This way all your old settings will be saved in .old folders and Illustrator will recreate new folders with default settings.
Regards,
Srishti