When I view the Playtime overview on the GameAnalytics dashboard and filter by custom dimensions, I see both of my defined custom dimensions listed correctly — which is great — but I also notice a significant number of users showing up with the value "null."

I am working with Unity and the following code below runs every time a player loads the app on their phone. Am I doing something wrong?

GameAnalytics.SetCustomDimension02(systemInstruction);

GameAnalytics.SetCustomDimension01(geminiModelName);

GameAnalytics.Initialize();

GameAnalytics.SetBuildAllPlatforms(Application.version);