diff --git a/libs/ardour/disk_reader.cc b/libs/ardour/disk_reader.cc
index 2509e522e5..22e035835a 100644
--- a/libs/ardour/disk_reader.cc
+++ b/libs/ardour/disk_reader.cc
@@ -642,6 +642,7 @@ DiskReader::overwrite_existing_buffers ()
 		}
 	}
 
+	overwrite_queued = false;
 	g_atomic_int_set (&_pending_overwrite, 0);
 
 	return ret;
diff --git a/libs/ardour/playlist.cc b/libs/ardour/playlist.cc
index 3cab0ef4aa..893b67c4b5 100644
--- a/libs/ardour/playlist.cc
+++ b/libs/ardour/playlist.cc
@@ -1786,6 +1786,10 @@ Playlist::region_changed (const PropertyChange& what_changed, boost::shared_ptr<
 		send_contents = true;
 	}
 
+	if (what_changed.contains (Properties::contents)) {
+		send_contents = true;
+	}
+
 	if (what_changed.contains (Properties::position) && !what_changed.contains (Properties::length)) {
 		notify_region_moved (region);
 	} else if (!what_changed.contains (Properties::position) && what_changed.contains (Properties::length)) {