Solved
Game Not Released after uninstalling high res textures
After uninstalling both the high res texture packs, the game says it is simply not released anymore and is now hanging on a 512 byte download. also, a bunch of errors like this pop up in the event...
You can solve this by fully reinstalling the game. While you're at it, if you're on steam, use the Manage DLC button to disable everything you don't want. The problem seems to be caused by using the in-built Uninstall HD Textures button inside the game while on Steam.
