Monster Hunter Stories 2 Wings of Ruin: How to Fix “Corrupt Data” Multiplayer Bug

A guide on how to fix your savefile if you are experiencing the “Corrupt Data” issue when trying to join co-op/multiplayer.


How to Fix “Corrupt Data” Multiplayer Bug
The “Corrupt Data” multiplayer bug that people have been seeing is caused due to choosing a custom skin tone during character creation. When attempting to start multiplayer, it checks for tampered data and incorrectly identifies the skin tone as invalid if it’s not one of the preset skin tones.

This can now be fixed (for free) using the following tool:

1. Go to your steam userdata folder and backup your data. (e.g. C:\Program Files (x86)\Steam\userdata\{YOUR STEAMID}\1277400\remote)
2. Download the latest MHST2-Save-Tools. You need BOTH .exe files!
3. Start AAStories2SaveTool.exe and select the mhr_slot_x.sav file as the input and output.
4. Enter your SteamID64 (can be found on a site like or
5. Click “Fix Save” and choose a skin tone preset for your character.
6. Start the game like normal

Thanks to Ando for his great method to fix corrupt data multiplayer error, all credit to his effort. you can also read the original guide from Steam Community. enjoy the game.

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Post Author: Robins Chew

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