Fix bug with placing blank markers on 0 spaces.

1 files changed, 2 insertions, 1 deletions

diff --git a/rules.ts b/rules.ts
index fa87589..a2982e4 100644
--- a/rules.ts
+++ b/rules.ts
@@ -3592,7 +3592,8 @@ function place_blank_marker(args) {
   let blank = get_blank_marker_id(track_id, space_id);
   log(`Trigger ${get_track_name(track_id)} ${space_id}:`);
   set_delete(game.untriggered_track_effects, blank);
-  set_add(game.triggered_track_effects, blank);
+  if (space_id > 0)
+    set_add(game.triggered_track_effects, blank);
   resolve_active_and_proceed();
 }