I had to reinstall my copy of Logos 9 on my Windows laptop running the latest Windows 10.
I instructed installation to download everything. It went through a typical process and finished opening the program and eventually finished indexing.
Now, I have 2,207 books not downloaded (seen in Library with the "Not on this Device" filter enabled.
I let it run for a few hours and no progress. Attached are logs.3731.KevinPurcellLogs.zip