diff --git a/TODO.md b/TODO.md
index 3b834a9..ed29ff4 100644
--- a/TODO.md
+++ b/TODO.md
@@ -24,6 +24,9 @@
 
 - Bug: when pushing obstacles around edges, they vanish
 
+-  Bug: Level  list grows  infinitely, there's  now upper  and lowever
+  limit on its size. Asked in Doscord about it
+
 ## Collider Rework [abandoned: see branch collider-system, fails]
 
 - do not use the map anymore for collision detection