Key missing after saving to datastore

[SelfDeclared]

I have a key called “_Options” that is missing after the data updates.

script:

local Success = false
pcall(function()
	self.Datastore:UpdateAsync(Key, function(OldValue)
		local OldValue = OldValue or DeepCopy(self.Template)
		
		warn("Past Version: ", OldValue.Info.DataId)
		warn("New Version: ",  PlayerData.Info.DataId)
		
		if PlayerData.Info.DataId == OldValue.Info.DataId then			
			--if PlayerData["Info"]["InGame"] == true then
			--	Success = true
			--	return PlayerData
			--end
			
			PlayerData.Info.DataId += 1
			PlayerData.Info.DataModified = tick()
			Success = true
			
			print(PlayerData)
			return PlayerData
		end
		return nil
	end)
end)

This is what it print out here print(PlayerData) right before return PlayerData the _Options key is still there but right after I save it this is what I get

The key is missing for whatever reason…

[idkhowtomakeusername (idk)]

Roblox Datastore does not accept mixed key tables (tables with both string and number keys) and arrays with gaps between the keys. You will have to convert every key into string or move the “__Options” key to somewhere else.