diff --git a/libs/vkd3d/state.c b/libs/vkd3d/state.c
index bc69ac59..9eb19595 100644
--- a/libs/vkd3d/state.c
+++ b/libs/vkd3d/state.c
@@ -4060,6 +4060,8 @@ VkPipeline d3d12_pipeline_state_create_pipeline_variant(struct d3d12_pipeline_st
                 state->graphics.rtv_active_mask, key->rtv_active_mask);
     }
 
+    /* FIXME: This gets modified on late recompilation, could there be thread safety issues here?
+     * For GENERAL depth-stencil, this mask should not matter at all, but there might be edge cases for tracked DSV. */
     graphics->dsv_plane_optimal_mask = d3d12_graphics_pipeline_state_get_plane_optimal_mask(graphics, dsv_format);
 
     if (key)