diff --git a/components/NetworkSwitcher.vue b/components/NetworkSwitcher.vue
index 69dfabe..1e7222a 100644
--- a/components/NetworkSwitcher.vue
+++ b/components/NetworkSwitcher.vue
@@ -100,16 +100,18 @@
 
 <script>
 import { defineComponent, nextTick, ref } from '@nuxtjs/composition-api'
-import { useModal } from '~/composables/useModal'
 import { useNetwork } from '~/composables/useNetwork'
+import { useTenderly } from '~/composables/useTenderly'
 
 export default defineComponent({
   setup() {
     const show = ref(false)
 
     const { networks, activeNetworkId, activeNetwork, checkForNetworkMismatch } = useNetwork()
+    const { stopSimulation } = useTenderly()
 
     const setActiveNetwork = async networkId => {
+      await stopSimulation()
       activeNetworkId.value = networkId;
       show.value = false
       await nextTick()
diff --git a/layouts/default.vue b/layouts/default.vue
index 5d59d7e..f95ec71 100644
--- a/layouts/default.vue
+++ b/layouts/default.vue
@@ -80,7 +80,7 @@
       </button>
     </div>
 
-    <div v-if="canSimulate" class="fixed bottom-0 left-0 ml-10 mb-16">
+    <div v-if="active && canSimulate" class="fixed bottom-0 left-0 ml-10 mb-16">
       <button
         v-if="forkId"
         @click="stopSimulation"