All tracks doesn't work anymore

[oneofmuch]

Hi Twonky-Folks,
at the last weeks I miss the functionality of the menu entry "All tracks". It appears in the menu, but nothing happens using it.
It worked fine ever, then suddenly not (don't know why), later (computer-restart) again, again not, and now nevermore. By using Noxon, the "All tracks" entry shows an arrow right, but by pressing it, as said, nothing happens.
Twonky-Support had no solution and ment it on the Noxons, TerraTec also to Twonky.

Technical facts:
TwonkyMusic 3.0 TerraTec Noxon Edition, running on Windows 2000 Server SP4 since a year without problems (I'm using it here because this computer runs 24/7).
2 pieces Noxon 2 Audio and 2 pieces Noxon iRadio with latest Firmware over WPA-WLAN.
My pool contains a structure of 36 folders (A-Z and some specified) with underfolders (Artist - Album), not more than 3 levels deep (e.g. audiobooks\illuminati\cd1), containing over 33300 pieces of music, growing. Included are only MP3's (and a really few jpgs, but they're not configured by Twonky), all clean in filenames and tags, no playlists (why, comes now...).

After registering Twonky 3 one year ago, I've tried the version 4.3, because m3u-playlist-entries were duplicating at every scan (or the whole thing was not scanning new tracks after changing properties for that). V3 works better, so I let it. Even I've tried the latest published V4.4 after my addressed problem, but it also had the same problem, so I'm using still V3. I'm a bit sad missing playlists, but it doesn't break me down.

I'm administering my MP3's with MP3tag and ID3Tag-IT. The last MP3s I've imported had produced a program-error on editing the tags with ID3Tag-IT, maybe some filenames or the equivalent title-entry was too long. But that's only a guess, surely I've shortened both.

Does anyone have an idea? May it be too much tracks? Or is my topic too confusing?

[oneofmuch]

I have tested the functionality by reducing the tracks to about 30000.

Then it worked...

Then I have stuffed the rest back and it was the old thing again.

So it seems to have a limitation of tracks... ?

[oneofmuch]

After talking with Twonky and Terratec again, I decided to try another time with a newer Twonky-Server. Meanwhile Version 4.4 is appeared, I downloaded and installed this one, and what should I say: It (seems to) work fine...

But there is now another (more little I hope) problem: The entry -ALL- will not be erased...