The Wargroove mod didn't close the commander.json's file handle. The Wargroove mod will now close that file handle. The change for the mod can be viewed here: FlySniper/WargrooveArchipelagoMod@fc9aeb3
The change can be verified as present in this repository by viewing the binary data in the modAssets.dat file and searching for "commander.json"
This adds Wargroove to the list of supported games. Wargroove uses a custom non-linear campaign over the vanilla and double trouble campaigns. A Wargroove client has been added which does a lot of heavy lifting for the Wargroove implementation and must be always on during gameplay. The mod source files can be found here: https://github.com/FlySniper/WargrooveArchipelagoMod