Bug Localization Exception: Attempting to use an invalid operation handle

I'm trying to use the Unity Localization package together with a "database" (list of things).
This database is basically a list of a class that contains an ID that the localization system can look up.
However, when trying to get a localized string via scripts, I'm getting the following exception:

Exception: Attempting to use an invalid operation handle
UnityEngine.ResourceManagement.AsyncOperations.AsyncOperationHandle.get_InternalOp () (at Library/PackageCache/com.unity.addressables@1.19.19/Runtime/ResourceManager/AsyncOperations/AsyncOperationHandle.cs:454)
UnityEngine.ResourceManagement.AsyncOperations.AsyncOperationHandle.get_Status () (at Library/PackageCache/com.unity.addressables@1.19.19/Runtime/ResourceManager/AsyncOperations/AsyncOperationHandle.cs:542)
UnityEngine.ResourceManagement.AsyncOperations.GroupOperation.CompleteIfDependenciesComplete () (at Library/PackageCache/com.unity.addressables@1.19.19/Runtime/ResourceManager/AsyncOperations/GroupOperation.cs:172)
UnityEngine.ResourceManagement.AsyncOperations.GroupOperation.OnOperationCompleted (UnityEngine.ResourceManagement.AsyncOperations.AsyncOperationHandle op) (at Library/PackageCache/com.unity.addressables@1.19.19/Runtime/ResourceManager/AsyncOperations/GroupOperation.cs:225)
UnityEngine.ResourceManagement.AsyncOperations.AsyncOperationBase`1+<>c__DisplayClass57_0[TObject].<add_CompletedTypeless>b__0 (UnityEngine.ResourceManagement.AsyncOperations.AsyncOperationHandle`1[TObject] s) (at Library/PackageCache/com.unity.addressables@1.19.19/Runtime/ResourceManager/AsyncOperations/AsyncOperationBase.cs:286)
DelegateList`1[T].Invoke (T res) (at Library/PackageCache/com.unity.addressables@1.19.19/Runtime/ResourceManager/Util/DelegateList.cs:69)
UnityEngine.Debug:LogException(Exception)
DelegateList`1:Invoke(AsyncOperationHandle`1) (at Library/PackageCache/com.unity.addressables@1.19.19/Runtime/ResourceManager/Util/DelegateList.cs:73)
UnityEngine.Localization.Settings.LocalizedDatabase`2:GetTable(TableReference, Locale)
LocalizationUtilities:GetLocalizedString(String, String) (at Assets/Scripts/Utilities/LocalizationUtilities.cs:16)
CourseItem:GetLocalizedCoursePrefix() (at Assets/Scripts/Databases/Courses/CourseItem.cs:53)
CourseItem:GetFullCourseName(Boolean) (at Assets/Scripts/Databases/Courses/CourseItem.cs:29)
CourseSelectManager:Start() (at Assets/Scripts/Course Select/CourseSelectManager.cs:19)

The code I'm using looks like this:

Code (CSharp):

1.     public static string GetLocalizedString(string table, string key)
2.     {
3.         if (LocalizationSettings.SelectedLocale == null)
4.         {
5.             Debug.LogWarning("No locale selected.");
6.             return "";
7.         }
8.  
9.         Debug.Log($"{table}    {key}");
10.  
11.         var localeTable = LocalizationSettings.StringDatabase.GetTable(table);
12.         var operation = LocalizationSettings.StringDatabase.GetLocalizedStringAsync(table, key);
13.         if (operation.IsDone)
14.             return operation.Result;
15.  
16.         string result = "";
17.         operation.Completed += op => result = op.Result;
18.         return result;
19.     }

I also tried the GetLocalizedString() method instead of the Async one, but no luck.

What am I doing wrong here?

 

The version I'm using is 1.3.2, and Unity doesn't show an Update button. Just to confirm, it's com.unity.localization I'm looking for, right?

 

Alright. That seems to have worked. Thanks!
Just a suggestion, but maybe an idea to show it in the Package Manager, since I think more people could run into this issue?