diff --git a/CHANGELOG.md b/CHANGELOG.md
index 73f05a0021..6af312891a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@
 * `String` and `byte[]` are now strongly typed for comparisons and queries. This change is especially relevant when querying for a string constant on a `RealmValue` property, as now only strings will be returned. If searching for binary data is desired, then that type must be specified by the constant. In RQL (`.Filter()`) the new way to specify a binary constant is to use `RealmValueProp = bin('xyz')` or `RealmValueProp = binary('xyz')`. (Core 14.0.0-beta.0)
 * Sorting order of strings has changed to use standard unicode codepoint order instead of grouping similar english letters together. A noticeable change will be from "aAbBzZ" to "ABZabz". (Core 14.0.0-beta.0)
 * In RQL (`Filter()`), ff you want to query using `@type` operation, you must use `objectlink` to match links to objects. `object` is reserved for dictionary types. (Core 14.0.0)
+* Opening file with file format 23 (Realm .NET versions ealrier than 12.0.0) in read-only mode will crash. (Core 14.0.0)
 
 ### Enhancements
 * Add support for passing a key paths collection (`KeyPathsCollection`) when using `IRealmCollection.SubscribeForNotifications`. Passing a `KeyPathsCollection` allows to specify which changes in properties should raise a notification.
diff --git a/wrappers/src/app_cs.cpp b/wrappers/src/app_cs.cpp
index f95dd221e3..9820041e24 100644
--- a/wrappers/src/app_cs.cpp
+++ b/wrappers/src/app_cs.cpp
@@ -296,26 +296,18 @@ extern "C" {
     }
 
     REALM_EXPORT void shared_app_reset_for_testing(SharedApp& app) {
+
+        if (!app->sync_manager()->get_logger()) {
+            return;
+        }
+
         auto users = app->all_users();
         for (size_t i = 0; i < users.size(); i++) {
             auto &user = users[i];
             user->log_out();
         }
 
-        while (app->sync_manager()->has_existing_sessions()) {
-            sleep_ms(5);
-        }
-
-        bool did_reset = false;
-        while (!did_reset) {
-            try {
-                app->sync_manager()->tear_down_for_testing();
-                did_reset = true;
-            }
-            catch (...) {
-
-            }
-        }
+        app->sync_manager()->tear_down_for_testing();
 
         App::clear_cached_apps();
     }