diff --git a/scenes/frame-ecm-list/scroll-ecm-list.gd b/scenes/frame-ecm-list/scroll-ecm-list.gd
index 8ad0a9fd..7433d7b2 100644
--- a/scenes/frame-ecm-list/scroll-ecm-list.gd
+++ b/scenes/frame-ecm-list/scroll-ecm-list.gd
@@ -127,6 +127,7 @@ func on_interfer_new(ecm, table_index):
 
 
 func on_interfer_off(ecm, table_index):
+    if not table_index.has(ecm.ispp): return
     $table.remove_row(table_index[ecm.ispp])
     rehash(table_index)
     var sel_rows: Array