Mod managers can occasionally suffer from mismatched MD5 checksums during large repository updates, leading to broken data streams or premature file deletions. Step-by-Step Fixes for "HS2 Missing Zipmod" 1. Run the Built-In Game Updater
If you are sure a mod is in the correct folder but the game still says it is missing, the issue could be a corrupted Sideloader cache. To fix this: hs2 missing zipmod