In the vox, I was unable to set up either a custom or one of the default dictionaries in the vocabulary module.  It would say that the dictionary was loaded in vox vocabulary help but then the fault "Warning: fs_vocabulary is active but no dictionary is loaded. See 'vox vocabulary help' for instructions." still came up. I decided to get a redelivery and try from the older 8.4.4 software on the redelivery version and it works correctly with multiple dictionary files.  To be clearer than the version number you have in here, I saw this issue in 8.5 b 191117.  Thanks, please get in touch if you need to.  :)