diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3a79268..ef94ca5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.12..4.0)
 
-project(move-transition VERSION 2.5.5)
+project(move-transition VERSION 2.5.6)
 set(PROJECT_FULL_NAME "Move Transition")
 
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/version.h.in ${CMAKE_CURRENT_SOURCE_DIR}/version.h)
diff --git a/move-source-filter.c b/move-source-filter.c
index c42ef68..afef3b1 100644
--- a/move-source-filter.c
+++ b/move-source-filter.c
@@ -963,15 +963,6 @@ void move_source_source_rename(void *data, calldata_t *call_data)
 	obs_data_release(settings);
 }
 
-static void move_source_frontend_event(enum obs_frontend_event event,
-				       void *private_data)
-{
-	if (event == OBS_FRONTEND_EVENT_SCENE_CHANGED) {
-		int i = 0;
-	} else if (event == OBS_FRONTEND_EVENT_PREVIEW_SCENE_CHANGED) {
-		int i = 0;
-	}
-}
 
 static void *move_source_create(obs_data_t *settings, obs_source_t *source)
 {
@@ -983,16 +974,12 @@ static void *move_source_create(obs_data_t *settings, obs_source_t *source)
 	signal_handler_connect(obs_get_signal_handler(), "source_rename",
 			       move_source_source_rename, move_source);
 
-	obs_frontend_add_event_callback(move_source_frontend_event,
-					move_source);
 	return move_source;
 }
 
 static void move_source_destroy(void *data)
 {
 	struct move_source_info *move_source = data;
-	obs_frontend_remove_event_callback(move_source_frontend_event,
-					   move_source);
 	signal_handler_disconnect(obs_get_signal_handler(), "source_rename",
 				  move_source_source_rename, move_source);
 
diff --git a/move-value-filter.c b/move-value-filter.c
index 1a67b72..a8d4e6b 100644
--- a/move-value-filter.c
+++ b/move-value-filter.c
@@ -402,6 +402,7 @@ void move_value_start(struct move_value_info *move_value)
 					move_value_start(filter_data);
 				}
 			}
+			obs_source_release(filter);
 		}
 	}
 }
@@ -1639,6 +1640,8 @@ void move_value_tick(void *data, float seconds)
 	obs_source_t *source =
 		move_value->filter ? move_value->filter
 				   : obs_filter_get_parent(move_value->source);
+	if (!source)
+		return;
 	obs_data_t *ss = obs_source_get_settings(source);
 	if (move_value->settings) {
 		const size_t count = obs_data_array_count(move_value->settings);
@@ -1865,6 +1868,7 @@ void move_value_tick(void *data, float seconds)
 									filter);
 						move_value_start(filter_data);
 					}
+					obs_source_release(filter);
 				}
 			}
 		} else if (move_value->next_move_on == NEXT_MOVE_ON_HOTKEY &&