bugfix: engine not started reliably for role gamemaster

client/src/plugins/engine/start.js

@@ -5,7 +5,7 @@ export default async function() {
       redirect('/')
     }
   }
-  if (this.isActive) {
+  if (this.isActive && !this.shouldStop) {
     console.warn('attempt to start already running engine!')
     return
   }
@@ -17,6 +17,7 @@ export default async function() {
   }
 
   this.isActive = true
+  this.shouldStop = false
   this.fetchUpdate()
   console.debug('engine started')
 }