diff --git a/openpype/hosts/webpublisher/webserver_service/webpublish_routes.py b/openpype/hosts/webpublisher/webserver_service/webpublish_routes.py
index 73e5113f38a..e34a899c4bb 100644
--- a/openpype/hosts/webpublisher/webserver_service/webpublish_routes.py
+++ b/openpype/hosts/webpublisher/webserver_service/webpublish_routes.py
@@ -20,11 +20,16 @@
 
 class RestApiResource:
     """Resource carrying needed info and Avalon DB connection for publish."""
-    def __init__(self, server_manager, executable, upload_dir):
+    def __init__(self, server_manager, executable, upload_dir,
+                 studio_task_queue=None):
         self.server_manager = server_manager
         self.upload_dir = upload_dir
         self.executable = executable
 
+        if studio_task_queue is None:
+            studio_task_queue = collections.deque().dequeu
+        self.studio_task_queue = studio_task_queue
+
         self.dbcon = AvalonMongoDB()
         self.dbcon.install()
 
@@ -182,8 +187,6 @@ async def post(self, request) -> Response:
             msg = "Non existent OpenPype executable {}".format(openpype_app)
             raise RuntimeError(msg)
 
-        # for postprocessing in host, currently only PS
-        output = {}
         log.info("WebpublisherBatchPublishEndpoint called")
         content = await request.json()
 
@@ -203,7 +206,10 @@ async def post(self, request) -> Response:
                     #   would change
                     # - targets argument is not used in 'remotepublishfromapp'
                     "targets": None
-                }
+                },
+                # does publish need to be handled by a queue, eg. only
+                # single process running concurrently?
+                "add_to_queue": True
             }
         ]
 
@@ -219,19 +225,20 @@ async def post(self, request) -> Response:
             "targets": ["filespublish"]
         }
 
+        add_to_queue = False
         if content.get("studio_processing"):
             log.info("Post processing called")
 
             batch_data = parse_json(os.path.join(batch_path, "manifest.json"))
             if not batch_data:
                 raise ValueError(
-                    "Cannot parse batch meta in {} folder".format(batch_path))
+                    "Cannot parse batch manifest in {}".format(batch_path))
             task_dir_name = batch_data["tasks"][0]
             task_data = parse_json(os.path.join(batch_path, task_dir_name,
                                                 "manifest.json"))
             if not task_data:
                 raise ValueError(
-                    "Cannot parse batch meta in {} folder".format(task_data))
+                    "Cannot parse task manifest in {}".format(task_data))
 
             for process_filter in studio_processing_filters:
                 filter_extensions = process_filter.get("extensions") or []
@@ -244,6 +251,7 @@ async def post(self, request) -> Response:
                         add_args.update(
                             process_filter.get("arguments") or {}
                         )
+                        add_to_queue = process_filter["add_to_queue"]
                         break
 
         args = [
@@ -263,11 +271,14 @@ async def post(self, request) -> Response:
                     args.append(value)
 
         log.info("args:: {}".format(args))
+        if add_to_queue:
+            log.debug("Adding to queue")
+            self.resource.studio_task_queue.append(args)
+        else:
+            subprocess.call(args)
 
-        subprocess.call(args)
         return Response(
             status=200,
-            body=self.resource.encode(output),
             content_type="application/json"
         )
 
diff --git a/openpype/hosts/webpublisher/webserver_service/webserver_cli.py b/openpype/hosts/webpublisher/webserver_service/webserver_cli.py
index d00d269059f..b7841054612 100644
--- a/openpype/hosts/webpublisher/webserver_service/webserver_cli.py
+++ b/openpype/hosts/webpublisher/webserver_service/webserver_cli.py
@@ -1,8 +1,10 @@
+import collections
 import time
 import os
 from datetime import datetime
 import requests
 import json
+import subprocess
 
 from openpype.lib import PypeLogger
 
@@ -31,10 +33,13 @@ def run_webserver(*args, **kwargs):
     port = kwargs.get("port") or 8079
     server_manager = webserver_module.create_new_server_manager(port, host)
     webserver_url = server_manager.url
+    # queue for remotepublishfromapp tasks
+    studio_task_queue = collections.deque()
 
     resource = RestApiResource(server_manager,
                                upload_dir=kwargs["upload_dir"],
-                               executable=kwargs["executable"])
+                               executable=kwargs["executable"],
+                               studio_task_queue=studio_task_queue)
     projects_endpoint = WebpublisherProjectsEndpoint(resource)
     server_manager.add_route(
         "GET",
@@ -88,6 +93,10 @@ def run_webserver(*args, **kwargs):
         if time.time() - last_reprocessed > 20:
             reprocess_failed(kwargs["upload_dir"], webserver_url)
             last_reprocessed = time.time()
+        if studio_task_queue:
+            args = studio_task_queue.popleft()
+            subprocess.call(args)  # blocking call
+
         time.sleep(1.0)
 
 
diff --git a/openpype/settings/defaults/project_settings/photoshop.json b/openpype/settings/defaults/project_settings/photoshop.json
index eb9f96e3480..0c24c943ec4 100644
--- a/openpype/settings/defaults/project_settings/photoshop.json
+++ b/openpype/settings/defaults/project_settings/photoshop.json
@@ -30,8 +30,7 @@
         },
         "ExtractReview": {
             "jpg_options": {
-                "tags": [
-                ]
+                "tags": []
             },
             "mov_options": {
                 "tags": [