Ahhh. I’ve been using iThemes security for a long time, with no problems. The other day I installed Mailchimp by ibericode. If I deactivate one or the other, Catch Customize doesn’t work. But if I deactivate iThemes and Mailchimp at the same time, then Customize does work! So, is it ok to just deactivate them when I need to customize and then turn them on again? If so, that’s fine. Would it cause any problems to do that? I don’t know if it would cause any problems on the backend.
Thanks for the suggestion. I should have thought of that, as I do know that deactivating plugins is usually the first port of call for troubleshooting. I just wasn’t thinking.