Hi there,
It might be Joomla issues as when you set your module access to "guest", it will hide you on the backend. By reinstalling the component, it will shown you those module again as it will set it access to "public".
By the way, glad to hear that your issue has been resolved now.
As a gentle reminder, kindly start a new thread if you have any other issue in the future so it will be easier for us to manage your inquiry. I will lock and mark this thread as resolved.