I can’t use my Brush tool on adobe Illustrator

Hi there,

Sorry to hear about the trouble you are facing. Could you please share a few more details like:

• The exact version of macOS & Illustrator
• Does this issue happen while working on a specific file? If yes, please share that file with us.
• When did this start happening? Are there any recent changes made to your system? For example, any antivirus, system updates, plugins, or web extensions installed recently.
• A small video demonstrating the issue could be really helpful.
• Does resetting Illustrator Preferences ( https://helpx.adobe.com/illustrator/using/setting-preferences.html) help to resolve the issue?
  Disclaimer: Please note that resetting preferences 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. Location is mentioned in the article.

We are here to help. We just need more information.

Regards,

Anshul Saini

Are you using a tablet, trackball, special mouse?

Did you just update? (If so was it working okay before?)