When a headset wakes from sleep, saved room positions in a multi-storey house with 10 rooms configured via native room setup can shift vertically by one or two storeys and horizontally, causing spatial corruption. This occurs when the system merges the current map record with an older stored record at an incorrect position, leading to rooms tied to the older record shifting. The issue is reproducible intermittently, occurs before Wi-Fi reconnects with no app running, and is not resolved by restart or software update. Diagnostic captures show four stored map pieces for one house with all links between them marked as not validated, and Scene Model data changes without Space Setup being invoked.