Illustrator "Adobe Illustrator 2024" title bar stuck in the middle of screen

Hello @Katherine5D7F,

We understand that encountering technical issues can be frustrating. Would you mind trying the following steps and checking if they help:

- Close all Adobe applications.

- Rename the UXP folder to UXP.old from the following location:

(Windows) Navigate to C:\Program Files\Common Files\Adobe\UXP

(macOS) Navigate to Macintosh HD/Library/Application Support/Adobe/UXP

- Relaunch Illustrator

If the problem persists, kindly try manually resetting Illustrator's preferences and share your observations:

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 28 Settings folders to Adobe Illustrator.old, com.adobe.illustrator.old and Adobe Illustrator 28 Settings.old

• Launch Illustrator from the Creative Cloud.

Note: Location starting with this "~" sign indicates the User Library, which is hidden. So, you need to copy & paste the exact path in spotlight search or from Finder Menu > Go > Go to Folder > Paste the location in the dialog box like this:

For Windows

- Close all Adobe applications.

- Go to Location C:\Users\%USERPROFILE%\AppData\Roaming\Adobe

- Rename Adobe Illustrator and Adobe Illustrator 28 Settings folders to Adobe Illustrator.old and Adobe Illustrator - 28 Settings.old

- Relaunch Illustrator from Creative Cloud

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 in case you want to. The location is mentioned above.