diff --git a/include/react/Observer.h b/include/react/Observer.h
index 45fd78a1..db690998 100644
--- a/include/react/Observer.h
+++ b/include/react/Observer.h
@@ -130,6 +130,7 @@ class ScopedObserver
     ScopedObserver& operator=(ScopedObserver&& other)
     {
         obs_ = std::move(other.obs_);
+        return *this;
     }
 
     // Deleted default ctor, copy ctor and assignment
@@ -139,7 +140,8 @@ class ScopedObserver
 
     ~ScopedObserver()
     {
-        obs_.Detach();
+        if (obs_.IsValid())
+            obs_.Detach();
     }
 
     bool IsValid() const
diff --git a/include/react/detail/ReactiveBase.h b/include/react/detail/ReactiveBase.h
index d7f32124..97d28a24 100644
--- a/include/react/detail/ReactiveBase.h
+++ b/include/react/detail/ReactiveBase.h
@@ -61,7 +61,7 @@ class ReactiveBase
     // Move assignment
     ReactiveBase& operator=(ReactiveBase&& other)
     {
-        ptr_.reset(std::move(other));
+        ptr_ = std::move(other.ptr_);
         return *this;
     }
 
diff --git a/include/react/logging/EventLog.h b/include/react/logging/EventLog.h
index e9622c7b..0e87cf05 100644
--- a/include/react/logging/EventLog.h
+++ b/include/react/logging/EventLog.h
@@ -29,7 +29,7 @@
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 class EventLog
 {
-    using TimestampT = std::chrono::time_point<std::chrono::high_resolution_clock>;
+    using TimestampT = std::chrono::time_point<std::chrono::system_clock>;
 
     class Entry
     {