downloading documents to DTTG2

In using DTTG2 I set it up to download everything to my iPad Pro so I will have quick access to the files. I am not able to get all the files to download. Many have, many have not. It does not seem to depend on the file type or whether they are indexed or not [I have both systems, even in same database]. Are there some settings I need to double check?

There is no extra setting for it. Please start a Support Ticket. Thanks.

There is an in app purchase function - download on demand, that is, you can download whatever as you want in stead of everything.