https://github.com/turikhay/MapModCompanion/wiki/Restoring-JourneyMap
in newer releases of journeymap for 1.21.1/10/11 - I provided an import/export button in the JourenyMap options screen so it is much easier to restore the data if worldId changes.
https://github.com/turikhay/MapModCompanion/wiki/Restoring-JourneyMap
in newer releases of journeymap for 1.21.1/10/11 - I provided an import/export button in the JourenyMap options screen so it is much easier to restore the data if worldId changes.