Hello,
In case it matters, I'm still on the 60 day evaluation at the moment.
As per the attached screenshot, I think I've found a bug.
When I hover my mouse pointer somewhere in the blank space in the 'Name' column, the popup appears giving a brief look at the directory contents, but the directory then disappears from the list. You can see that there are no directories showing in the list between 'Chapter 8.5' and 'Chapter 19'.
If I navigate up a directory level and then back down again, the folders reappear in the list.
I can reproduce this issue, and it doesn't seem to affect directories near the top of the listing. You can clearly see in the screenshot that the first 20 or so are still listed along with their size.
If you need any more info, please let me know.
Cheers.