My space option for adobe illustrator is not working

Hello @Aminah25263021hf4z,

Sorry to hear about this experience. I hope resetting Illustrator's preferences as suggested by Ares helped resolve the problem. If not, kindly try the following steps and share your observations with us:

1. Go to the following locations:

~/Library/Preferences
Move Adobe Illustrator, com.adobe.illustrator, and Adobe Illustrator 26 Settings folders to a new folder on the desktop.

~/Library/Application Support/Adobe
Move the UXP folder to a new folder on the desktop.

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:

/Library
Move the CEP and UXP folders to a new folder on the desktop.

Disclaimer: Please note that moving the preferences folders will remove all the custom settings, and Illustrator will launch with default settings. You can also take a backup of the folders in case you want to. The location is mentioned above.

2. Relaunch Illustrator

Please update this thread if the issue persists or if you need further assistance. We'd be happy to help.

Thanks,

Anubhav

Note: Marking correct for visibility.