I am also getting the same "failed" message. Win 10 system. I downloaded the non-high res because my internet is so slow (I get 3 Mbps absolute max, which means usually around 2.5), that trying to do the high res it takes way too long given how short your sessions are. occasionally it will say that patchclient.dll::Check data files failed. It does work on downloading if I have it try the high res.

Hopefully something can be fixed by the next run! I won't be able to let it sit overnight to download the high res, so will probably have to miss this round.