If you are having problems with Illustrator tools not working properly, there are a few things you can do to reset them.
1. Quit Illustrator and relaunch it.
2. From the Illustrator menu, choose ” Preferences ”
3.In the ” Illustrator Preferences ” window, click on the ” Toolbars ” tab
4. Click on the ” Reset Toolbar ” button
5. Click on the ” Reset All Tools ” button
6. Restart Illustrator.
If all of the above steps fail to fix your tools, you may need to reinstall Illustrator.