Hello @emilycapito,
That can be conflict with another plugin – in this case please first check if switching to WordPress default theme like 2017 will resolve the issue.
If not, please disable all other plugins on the site and see if this will start working correctly. If yes, start then enabling them one by one until it will be broke again – this way we will know the culprit.
Let me know about the results.
kind regards,
Kasia
Thank you for using Custom Sidebars! I am going to close this topic because we did not receive follow-up troubleshooting instructions. If this issue is not resolved let us know and we can reopen the ticket.