diff -r 26fa2e8761fb -r 215db9299a1a src/Pure/ML/ml_process.scala
--- a/src/Pure/ML/ml_process.scala	Sun Feb 18 15:16:20 2024 +0100
+++ b/src/Pure/ML/ml_process.scala	Sun Feb 18 19:09:05 2024 +0100
@@ -24,7 +24,7 @@
 
     session_background.sessions_structure.selection(logic_name).
       build_requirements(List(logic_name)).
-      map(store.the_heap)
+      map(name => store.get_session(name).the_heap)
   }
 
   def apply(