Depsgraph: Fix render pipeline depsgraph pointing to freed data

1 files changed, 7 insertions, 1 deletions

diff --git a/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc b/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc
index 4b0d6d43f4f..bd569176c78 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc
+++ b/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc
@@ -349,7 +349,13 @@ void scene_remove_unused_view_layers(const Depsgraph *depsgraph,
   else if (depsgraph->is_render_pipeline_depsgraph) {
     /* If the dependency graph is used for post-processing (such as compositor) we do need to
      * have access to its view layer names so can not remove any view layers.
-     * On a more positive side we can remove all the bases from all the view layers. */
+     * On a more positive side we can remove all the bases from all the view layers.
+     *
+     * NOTE: Need to clear pointers which might be pointing to original on freed (due to being
+     * unused) data. */
+    LISTBASE_FOREACH (ViewLayer *, view_layer, &scene_cow->view_layers) {
+      view_layer->basact = NULL;
+    }
     return;
   }
   else {