diff --git a/ui/media/main.js b/ui/media/main.js
index 864d6c4a..6764db77 100644
--- a/ui/media/main.js
+++ b/ui/media/main.js
@@ -637,23 +637,25 @@ async function checkTasks() {
     const genSeeds = Boolean(typeof task.reqBody.seed !== 'number' || (task.reqBody.seed === task.seed && task.numOutputsTotal > 1))
     const startSeed = task.reqBody.seed || task.seed
     for (let i = 0; i < task.batchCount; i++) {
+        let newTask = task;
         if (task.batchCount > 1) {
             // Each output render batch needs it's own task instance to avoid altering the other runs after they are completed.
-            task = Object.assign({}, task, {
+            newTask = Object.assign({}, task, {
                 reqBody: Object.assign({}, task.reqBody)
             })
         }
         if (genSeeds) {
-            task.reqBody.seed = startSeed + (i * task.reqBody.num_outputs)
-            task.seed = task.reqBody.seed
-        } else if (task.seed !== task.reqBody.seed) {
-            task.seed = task.reqBody.seed
+            newTask.reqBody.seed = startSeed + (i * newTask.reqBody.num_outputs)
+            newTask.seed = newTask.reqBody.seed
+        } else if (newTask.seed !== newTask.reqBody.seed) {
+            newTask.seed = newTask.reqBody.seed
         }
 
-        let success = await doMakeImage(task)
+        let success = await doMakeImage(newTask)
         task.batchesDone++
 
-        if (!task.isProcessing) {
+        if (!newTask.isProcessing) {
+            task.isProcessing = false
             break
         }