Octopath Traveler II looks similar to the first game at a glance, but its Steam directory adds an explicit Steam branch and current transfer reports call out SystemData.sav alongside SaveData slot files. That makes whole-folder backup more important than copying a single large slot. SaveEditor records the current Microsoft Store WGS path separately and avoids claiming that a Game Pass blob can simply be renamed into a Steam SaveData file without the system-data context.
Start with the least destructive explanation
When Octopath Traveler II progress appears missing, first verify the active PC location: Windows: Steam: %USERPROFILE%DocumentsMy GamesOctopath_Traveler2Steam<user-id>SaveGames ; Microsoft Store: %LOCALAPPDATA%Packages39EA002F.OCTOPATHTRAVELER2_n746a19ndrrjgSystemAppDatawgs. Expected files/folders: SaveData*.sav plus SystemData.sav on current Steam builds.. Many apparent save failures are actually profile, storefront, path-redirection, or cloud-selection problems rather than damaged game data.
Preserve every surviving copy
Copy the whole SaveGames directory on Steam, including SystemData.sav. For Microsoft Store, preserve all WGS containers before identifying slot and system payloads. Before renaming, moving, replacing, or opening candidate backups, copy them outside the live directory. Do not use the only surviving file as the test specimen for repair or editing.
Check launcher and cloud state
Storefront context: Steam, Microsoft Store. Steam and Game Pass storage differ. Current community migration notes identify both slot-sized files and separate system data in WGS. Cloud notes: Steam Cloud and Xbox Cloud are documented. A sync client can reintroduce an older or newer version after a manual restore, so recovery work should keep local and cloud copies conceptually separate until the wanted progress is confirmed.
Use format and compatibility clues
The sequel uses a Steam-specific Documents branch and separates slot saves from system data. Microsoft Store uses WGS. SystemData should be backed up with the slots because it can contain state not represented by one SaveData file. Do not restore only one SaveData slot if you are trying to reproduce the complete profile state. Cross-store migration may need both slot and system payload handling. If the file exists but is ignored, compare the complete directory structure, slot/profile naming, game edition, mods/DLC, and any companion metadata. Do not assume an extension change or generic checksum tool can repair a game-specific container.
Game-specific troubleshooting
If an imported slot seems blank or incomplete, check whether SystemData came from the same snapshot and whether Steam Cloud restored the previous directory. If a known-good backup works, preserve it and create a fresh in-game save before further experiments. If no copy works, prefer read-only inspection and source-backed game-specific tooling over repeated writes.
Verification context: Reviewed against current PCGamingWiki Octopath Traveler II save path and 2026 community notes describing SystemData during WGS-to-Steam transfers.