Apologies for the delayed response. We'll be happy to help. Would you mind sharing version of the Illustrator? Did you try restarting Wacom? Have you tried resetting preferences?
If not, please try doing that by following this help article. Let us know how it goes.
**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.