Hi,

 

So I recently got into CDLC, went a bit crazy and added a few hundred songs.

They don't work though ! After the tuning page, I just get an empty screen. I tried repackaging using the Custom Song Creator. I guess now I'm gonna try emptying the DLC folder, re-verfying game install (Steam version), and adding only the one DLC at a time. If that doesn't work, I'll try to repackage again, saw a guy in the Tutorials section say it might need a few attempts.

Any other magical solutions ?

It wasn't mentioned in your post, so I'll suggest this just in case:

 

Don't forget the dll file and buy Cherub Rock.