Where have you stored your media?
I had a similar problem when I first started using Twonky; it would show it accumulating media in its database, and I could access them via a DLNA client, but, as soon as Twonky finished indexing, all the media disappeared from its library.
I’m unclear whether Twonky is involved in the Dashboard statistics, but, if it is, then the solution I found was to make sure media serving is turned on, as well as the media server. See this thread:
In particular, the FAQ: Q. Why doesn’t Twonky find my media?
I can’t guarantee this will fix your problem, but it may be the issue.
One other possibility is that I found putting media in the ‘Shared Media’ folders (as recommended in the User Manual) to cause no end of problems with Twonky. So I put my media elsewhere, and leave those folders for Twonky to store ‘aggregated media’.
