diff --git a/src/UI/Timeline/AnimationTimeline.gd b/src/UI/Timeline/AnimationTimeline.gd
index c5bb90a63..97789224f 100644
--- a/src/UI/Timeline/AnimationTimeline.gd
+++ b/src/UI/Timeline/AnimationTimeline.gd
@@ -89,18 +89,28 @@ func _get_minimum_size() -> Vector2:
 	return Vector2(Global.layer_vbox.rect_size.x + cel_size + 26, cel_size + 105)
 
 
-func _frame_scroll_changed(value: float) -> void:
+func _frame_scroll_changed(_value: float) -> void:
 	# Update the tag scroll as well:
-	tag_scroll_container.get_child(0).rect_min_size.x = Global.frame_hbox.rect_size.x
-	tag_scroll_container.scroll_horizontal = value
+	adjust_scroll_container()
 
 
 func _on_LayerVBox_resized() -> void:
 	frame_scroll_bar.margin_left = frame_scroll_container.rect_position.x
+	adjust_scroll_container()
+
+
+func adjust_scroll_container():
 	tag_spacer.rect_min_size.x = (
 		frame_scroll_container.rect_global_position.x
 		- tag_scroll_container.rect_global_position.x
 	)
+	print("    ")
+	tag_scroll_container.get_child(0).rect_min_size.x = Global.frame_hbox.rect_size.x
+	Global.tag_container.rect_min_size = Global.frame_hbox.rect_size
+	tag_scroll_container.scroll_horizontal = frame_scroll_bar.value
+	print(tag_scroll_container.get_child(0).rect_min_size.x)
+	print(Global.tag_container.rect_min_size)
+	print(tag_scroll_container.scroll_horizontal)
 
 
 func _on_LayerFrameSplitContainer_gui_input(event: InputEvent) -> void:
@@ -189,6 +199,8 @@ func add_frame() -> void:
 	project.undo_redo.add_do_method(project, "change_cel", project.current_frame + 1)
 	project.undo_redo.add_undo_method(project, "change_cel", project.current_frame)
 	project.undo_redo.commit_action()
+	yield(get_tree(), "idle_frame")
+	adjust_scroll_container()
 
 
 func _on_DeleteFrame_pressed() -> void:
@@ -256,6 +268,8 @@ func delete_frames(indices := []) -> void:
 	project.undo_redo.add_do_method(Global, "undo_or_redo", false)
 	project.undo_redo.add_undo_method(Global, "undo_or_redo", true)
 	project.undo_redo.commit_action()
+	yield(get_tree(), "idle_frame")
+	adjust_scroll_container()
 
 
 func _on_CopyFrame_pressed() -> void:
@@ -277,7 +291,7 @@ func copy_frames(indices := [], destination := -1) -> void:
 	var copied_frames := []
 	var copied_indices := []  # the indices of newly copied frames
 	if destination != -1:
-		copied_indices = range((destination + 1), (destination + 1) + indices.size())
+		copied_indices = range(destination + 1, (destination + 1) + indices.size())
 	else:
 		copied_indices = range(indices[-1] + 1, indices[-1] + 1 + indices.size())
 
@@ -389,7 +403,7 @@ func _on_TagList_id_pressed(id: int) -> void:
 	var frames = []
 	for i in range(tag.from - 1, tag.to):
 		frames.append(i)
-	copy_frames(frames, Global.current_project.current_frame)
+	copy_frames(frames, Global.current_project.current_frame - 1)
 
 
 func _on_FrameTagButton_pressed() -> void: