The issue seems to come from here as you suggested, this is on mine :
"TrackedActivities": [ ], "CurrentTrackedActivity": -1, "LastKnownBoughtExpansions": [ ], "LastKnownBoughtExpansionsAnyPlatform": [ "BaseGame" ], "LastKnownBoughtSeasonalPacksAnyPlatform": { }, "ProblemsTracker": {...