In the beta, the new levels show up completely blank, even the ones I downloaded before.
I have the levels.rar levels in my VVVVVV folder, but their names are blank and clicking on them leads to an empty level.
If I reextract them into the vvvvvv folder while in-game, they work for that session.
It did the blank thing before I installed all the levels, I had most of them, and I didn't want to download all the new levels (I didn't play them anyway, just made levels myself usually), so I just installed the new VVVVVV before the levels.