diff --git a/frigate/http.py b/frigate/http.py
index 4ae4d4d95..a5f9834eb 100644
--- a/frigate/http.py
+++ b/frigate/http.py
@@ -184,6 +184,18 @@ def send_to_plus(id):
         logger.error(message)
         return make_response(jsonify({"success": False, "message": message}), 404)
 
+    if event.end_time is None:
+        logger.error(f"Unable to load clean png for in-progress event: {event.id}")
+        return make_response(
+            jsonify(
+                {
+                    "success": False,
+                    "message": "Unable to load clean png for in-progress event",
+                }
+            ),
+            400,
+        )
+
     if event.plus_id:
         message = "Already submitted to plus"
         logger.error(message)
@@ -202,6 +214,15 @@ def send_to_plus(id):
             400,
         )
 
+    if image is None or image.size == 0:
+        logger.error(f"Unable to load clean png for event: {event.id}")
+        return make_response(
+            jsonify(
+                {"success": False, "message": "Unable to load clean png for event"}
+            ),
+            400,
+        )
+
     try:
         plus_id = current_app.plus_api.upload_image(image, event.camera)
     except Exception as ex:
diff --git a/web/src/routes/Events.jsx b/web/src/routes/Events.jsx
index 87ae63ec8..5558c3fe6 100644
--- a/web/src/routes/Events.jsx
+++ b/web/src/routes/Events.jsx
@@ -366,7 +366,7 @@ export default function Events({ path, ...props }) {
               download
             />
           )}
-          {downloadEvent.has_snapshot && !downloadEvent.plus_id && (
+          {(downloadEvent.end_time && downloadEvent.has_snapshot && !downloadEvent.plus_id) && (
             <MenuItem
               icon={UploadPlus}
               label={uploading.includes(downloadEvent.id) ? 'Uploading...' : 'Send to Frigate+'}
@@ -527,7 +527,7 @@ export default function Events({ path, ...props }) {
                         </div>
                       </div>
                       <div class="hidden sm:flex flex-col justify-end mr-2">
-                        {event.has_snapshot && (
+                        {(event.end_time && event.has_snapshot) && (
                           <Fragment>
                             {event.plus_id ? (
                               <div className="uppercase text-xs">Sent to Frigate+</div>