diff --git a/src/store.ts b/src/store.ts
index ccbe398..bec1d69 100644
--- a/src/store.ts
+++ b/src/store.ts
@@ -97,7 +97,9 @@ export const useStore = defineStore({
 
     stockSupportsColdStart: (state) => {
       if (state.stockList.length == 0) return false;
+
       if (!isTractionUnit(state.stockList[0].vehicleRef)) return false;
+      else if (state.stockList.length > 1) return false;
 
       const headingLoco = state.stockList[0];