don’t delete them. back up the file to new version – in case you have to go back if you mess up – and in modulator list, have a look at which group the modulators belong to. what you’ve probably done is copy these from other modulators when you created them, and they inherited the original group parenthood.
the ideal way when you copy an existing modulator to make a new one is to put it first on the workspace before taking it to the desired new location/group, and then it seems to shed that original group association.
so, providing you’ve named the modulators in a way you can identify them and group them together in a list easily, identify at least one of them, and try removing/changing the ‘group’ column, then save and close the file, and re-open it. if it appears where it’s supposed to, you’re on the right track. could be lots of work if you just had a big session making loads of new modulators, copies of ones in another group. beware, doing this can mess things up if you get it wrong… it’s a lesson learnt for the future when you copy existing modulators. i had some horrible experiences like this 🙂