Unfortunately this is an ongoing issue awaiting an update from the forum team. In the meantime consider using another service that provides similar or better functionality. This can be done by changing the DNS settings of either:
your home network if using a third-party route — DNS cannot be changed on Hub; any devices connecting should automatically use the DNS configured unless manual set not to
-- I'm a Very Insightful Person, I'm here to share knowledge, I don't work for Virgin Media. Learn more Have I helped? Click Mark as Helpful Answer and solved, or use Kudos to say thanks
Welcome back to the community and thanks for taking the time to post. I'm really sorry to hear of the issues that you're having with Child safe, this is currently being investigated at the moment.
Has the advice and temporary workaround from @用心棒, helped you to block the content that you didn't want to be seen?