There is an issue where the game confuses which campaign module it loads, creating subsequent save files with incorrect dependencies. Attempting to load these saves leads to errors like "Server shutting down". This issue is related to the game engine itself, not the mod, so our best chance is to report it to Larian Studios and hope for a fix. That said, it is possible to prevent the issue and fix corrupted save files.

To prevent your save files from becoming corrupted, follow this method each time you load a save from the main menu:

• Make sure Roguelike Arena is selected in the adventure dropdown when loading an existing save.
  
• Be especially mindful of the Continue button, as using it bypasses the menu where you select the campaign. Always make sure you check the dropdown before loading your save.
  
• Important: If Roguelike Arena is already selected by the game (not manually by you), subsequent saves will still become corrupted. This happens because the game internally references the wrong module, even though the dropdown shows Roguelike Arena.
  
• To avoid this issue, if Roguelike Arena is pre-selected by the game, select another campaign first, then switch back to Roguelike Arena. This ensures that the campaign is loaded correctly, preventing the creation of corrupted save files.
  
• You must follow this method whenever loading the campaign via the main menu. Reloading during an active session (without returning to the main menu) will not cause issues.

Selecting the correct campaign will not fix corrupted save files. The problem lies in the mod dependencies inside the save files, which become incorrect when the game thinks it loads the wrong campaign. To fix these files, the dependencies must be corrected, which requires some technical knowledge. If you have a corrupted save, you can send me the .lsv file, and I will repair it for you.

Alternatively, you can attempt to do it yourself. I might make a comprehensive guide in the future, but until then here's a summary of the steps you need to take:

• Extract the corrupted save file via LSLib[github.com]
  
• Using LSLib, convert the extracted files to a format you're familiar with
  
• Open the converted character creation leveldata file with an editor and copy the section that lists mod dependencies
  
• Open all the other converted files and overwrite mod dependencies with what you copied
  
• Convert all files back to their original format
  
• Recreate the save file from the files you just converted

A big thanks to Pip for helping me identify the cause of this issue!