I've been struggling with the upgrade for a while... one thing that seems to help is i went through and took all the spaces out of the file names and shortened them where i could.... strange as it seems... and a royal pain.... just doing that has made the game usable... doesnt affect in game song names or previous scores etc... backed up dlc folder i uninstalled removed everything (uninstall via steam and then manually deleted folders), reinstalled via steam. tested as working, as delivered from steam.... added a few custom DLC.... tried again... no work... ran page one patch... worked! added all DLC back... dead again (no covers, hang after tuning, rarely played preview clips, etc) removed dlc again (just used command Z, as this removed what i added and left stock/paid DLC) then i started adding selectively down the list (original DLC was around 2000ish) i had alot of duplicates etc.. so used it as an opportunity to delete/cleanup. got to a certain point after about 500 or so and the issue started coming back..... i messed with putting smaller and smaller batches of them trying to pin down a single file... but it would come back no matter which file... on a whim i started renaming/shortening and removing blank spaces out of filenames and it started working. strangely it still comes back at certain points in trying to get more CDLC in the folder.... but i go through and cleanup missed spaces and long filenames (like i need to remember who made it or what version... and who names something v1.... thats like you know you did a crap job and preplan a v2 ha) anyway.... long winded list of things i tried and some things that have been helping in case anyone else finds it useful.
