Bug Unity Analytics clientVersion changed after RemoteConfigService.Instance.FetchConfigs

I found a strange problem that changed clientVersion after called RemoteConfigService.Instance.FetchConfigs.

First, when after UnityService initialized, clientVersion is right.




But, after then I called RemoteConfigSerivce.Instance.FetchConfigs.



After that, All my custom events clientVersion reported with changed (3.1.3+RCR).

I was initialize UnityService with our custom userId after our server login like this:

Code (CSharp):

1. var options = new InitializationOptions();
2. options.SetOption("com.unity.services.core.environment-name", GetCurrentEnvironment());
3. options.SetOption("com.unity.services.core.analytics-user-id", userId);
4. await UnityServices.InitializeAsync(options);

And then called RemoteConfig fetch.

Code (CSharp):

1. if (!AuthenticationService.Instance.IsSignedIn)
2. {
3.     await AuthenticationService.Instance.SignInAnonymouslyAsync();
4. }
5. RemoteConfigService.Instance.FetchConfigs(new userAttributes(), new appAttributes());

I'm using Unity 2020.3.40f1, and tested Remote Config 3.1.3 and 3.3.1. Also, tested with/without ENABLE_CLOUD_SERVICES_ANALYTICS define. All result are same.

I setup Game Override with all Existing Players audience. So that I guess that above Unity internal event "userAssignment" is triggered when user assigned my Game Override campaign. ("userAssignment" event automatically assigns a player to a campaign for reporting.)

Finally, there is hardly defined pluginVersion "3.1.3" in the com.unity.remote-config-runtime ConfigManagerImpl.cs. And int the constructor, RemoteConfigRequest created with this code(there is similar code in the ConfigManagerImpl2x.cs too):

Code (CSharp):

1. _remoteConfigRequest = new RemoteConfigRequest
2. {
3.     projectId = Application.cloudProjectId ?? "",
4.     userId = "",
5.     isDebugBuild = Debug.isDebugBuild,
6.     configType = "",
7.     playerId = "",
8.     analyticsUserId = "",
9.     configAssignmentHash = null,
10.     packageVersion = pluginVersion + "+RCR",
11.     originService = originService,
12. };

Because the client version of "3.1.3+RCR" is very peculiar, I guessed that the problem might have something to do with this code, but I couldn't find anything more that I could do.

Thanks for reading my long post