The "RimWorld error site label detected new" error is a relatively new issue that has been reported by several players. The error message typically appears when the game is trying to load or save a game, and it can be accompanied by a crash or a freeze. The error message doesn't provide much information about the cause, but it suggests that there's a problem with the game's site label detection.
PSA: How to fix the broken "ERR: [Site_label]" quest log bug If you're seeing ERR: [Site_label] [detected] rimworld err site label detected new
: If this is happening on a fresh install or new game, use Steam's Verify Integrity of Game Files tool to ensure no core files are missing. The "RimWorld error site label detected new" error