eB Layout Editor cascade change not working


We're trying to use eB Layout Editor to cascade a change down through the entire tree to change the name of the Relationship to the File/Document. We're working with version 15.6 and this functionality worked on one community where the change was made at the Documents level and overnight when the servers recycled, the change appeared within each 'child' class. For the subsequent communities, the change was made at the Documents level but the changes have not cascaded down despite being left, reattempted and the servers manually restarted. We'd rather use this cascade functionality as we have 160+ classes in each of 6 communities so don't want to have to change this almost 1,000 times.

Are there any known issues or bugs with this functionality, or advice on pushing the update through down the tree?

Many thanks