Steer clear of third-party file-sharing blogs or unverified forums claiming to host "free compressed v10 links." These often bundle malware, outdated v9 builds, or broken assets that disrupt your playthrough.
Save files from older, standalone versions of Chapter 1 are rarely compatible with the combined Chapter 1 & 2 v1.0 engine build. Players should start a clean playthrough to ensure narrative flags trigger properly in Chapter 2.