Folder Replication

When I log into my Acrobat account I am presetned with a list of Folders and Files.

If I select a file to move to a folder the following happens.

I select the folder & expand it to get to a sub folder.

I am presented with nested folders the same layout as the main folder.

I have tried logging out and back in again

I have tried this on Internet Expolorer and Chrome

All with the same results

This used to work as have succesfully moved many files around.

Help