diff --git a/pype/ftrack/actions/action_application_loader.py b/pype/ftrack/actions/action_application_loader.py
index 1b0f48f9be..06a3f9c92e 100644
--- a/pype/ftrack/actions/action_application_loader.py
+++ b/pype/ftrack/actions/action_application_loader.py
@@ -4,7 +4,7 @@ import time
 from pype.ftrack import AppAction
 from avalon import lib
 from pypeapp import Logger
-from pype import lib as pypelib
+from pype.lib import get_all_avalon_projects
 
 log = Logger().get_logger(__name__)
 
@@ -15,10 +15,7 @@ def registerApp(app, session):
     try:
         variant = app['name'].split("_")[1]
     except Exception:
-        log.warning((
-            '"{0}" - App "name" and "variant" is not separated by "_"'
-            ' (variant is not set)'
-        ).format(app['name']))
+        pass
 
     abspath = lib.which_app(app['name'])
     if abspath is None:
@@ -47,18 +44,28 @@ def registerApp(app, session):
         icon, description, preactions
     ).register()
 
+    if not variant:
+        log.info('- Variant is not set')
+
 
 def register(session):
-    projects = pypelib.get_all_avalon_projects()
+    # WARNING getting projects only helps to check connection to mongo
+    # - without will `discover` of ftrack apps actions take ages
+    result = get_all_avalon_projects()
 
     apps = []
-    appNames = []
-    # Get all application from all projects
-    for project in projects:
-        for app in project['config']['apps']:
-            if app['name'] not in appNames:
-                appNames.append(app['name'])
-                apps.append(app)
+
+    launchers_path = os.path.join(os.environ["PYPE_CONFIG"], "launchers")
+    for file in os.listdir(launchers_path):
+        filename, ext = os.path.splitext(file)
+        if ext.lower() != ".toml":
+            continue
+        loaded_data = toml.load(os.path.join(launchers_path, file))
+        app_data = {
+            "name": filename,
+            "label": loaded_data.get("label", filename)
+        }
+        apps.append(app_data)
 
     apps = sorted(apps, key=lambda x: x['name'])
     app_counter = 0
@@ -68,5 +75,8 @@ def register(session):
             if app_counter%5 == 0:
                 time.sleep(0.1)
             app_counter += 1
-        except Exception as e:
-            log.exception("'{0}' - not proper App ({1})".format(app['name'], e))
+        except Exception as exc:
+            log.exception(
+                "\"{}\" - not a proper App ({})".format(app['name'], str(exc)),
+                exc_info=True
+            )
diff --git a/pype/ftrack/lib/avalon_sync.py b/pype/ftrack/lib/avalon_sync.py
index b677529ec3..962dc1165c 100644
--- a/pype/ftrack/lib/avalon_sync.py
+++ b/pype/ftrack/lib/avalon_sync.py
@@ -116,13 +116,13 @@ def import_to_avalon(
             # not override existing templates!
             templates = av_project['config'].get('template', None)
             if templates is not None:
-                for key, value in config['template'].items():
+                for key, value in proj_config['template'].items():
                     if (
                         key in templates and
                         templates[key] is not None and
                         templates[key] != value
                     ):
-                        config['template'][key] = templates[key]
+                        proj_config['template'][key] = templates[key]
 
         projectId = av_project['_id']
 
@@ -142,7 +142,7 @@ def import_to_avalon(
             {'_id': ObjectId(projectId)},
             {'$set': {
                 'name': project_name,
-                'config': config,
+                'config': proj_config,
                 'data': data
             }}
         )
diff --git a/pype/ftrack/lib/ftrack_app_handler.py b/pype/ftrack/lib/ftrack_app_handler.py
index fcec20cf6f..7389d1c2c3 100644
--- a/pype/ftrack/lib/ftrack_app_handler.py
+++ b/pype/ftrack/lib/ftrack_app_handler.py
@@ -221,10 +221,15 @@ class AppAction(BaseHandler):
                 anatomy = anatomy.format(data)
                 work_template = anatomy["work"]["folder"]
 
-            except Exception as e:
-                self.log.exception(
-                    "{0} Error in anatomy.format: {1}".format(__name__, e)
+            except Exception as exc:
+                msg = "{} Error in anatomy.format: {}".format(
+                    __name__, str(exc)
                 )
+                self.log.error(msg, exc_info=True)
+                return {
+                    'success': False,
+                    'message': msg
+                }
 
         workdir = os.path.normpath(work_template)
         os.environ["AVALON_WORKDIR"] = workdir
diff --git a/pype/ftrack/lib/ftrack_base_handler.py b/pype/ftrack/lib/ftrack_base_handler.py
index 5f219c1af8..1bb3eb7a8f 100644
--- a/pype/ftrack/lib/ftrack_base_handler.py
+++ b/pype/ftrack/lib/ftrack_base_handler.py
@@ -75,7 +75,7 @@ class BaseHandler(object):
                     self.type, label)
                 )
             except Exception as e:
-                self.log.exception('{} "{}" - Registration failed ({})'.format(
+                self.log.error('{} "{}" - Registration failed ({})'.format(
                     self.type, label, str(e))
                 )
         return wrapper_register
@@ -84,25 +84,26 @@ class BaseHandler(object):
     def launch_log(self, func):
         @functools.wraps(func)
         def wrapper_launch(*args, **kwargs):
-            label = self.__class__.__name__
             if hasattr(self, 'label'):
-                if self.variant is None:
-                    label = self.label
-                else:
+                if hasattr(self, 'variant'):
                     label = '{} {}'.format(self.label, self.variant)
+                else:
+                    label = self.label
+            else:
+                label = self.__class__.__name__
 
+            self.log.info(('{} "{}": Launched').format(self.type, label))
             try:
-                self.log.info(('{} "{}": Launched').format(self.type, label))
-                result = func(*args, **kwargs)
-                self.log.info(('{} "{}": Finished').format(self.type, label))
-                return result
-            except Exception as e:
-                msg = '{} "{}": Failed ({})'.format(self.type, label, str(e))
-                self.log.exception(msg)
+                return func(*args, **kwargs)
+            except Exception as exc:
+                msg = '{} "{}": Failed ({})'.format(self.type, label, str(exc))
+                self.log.error(msg, exc_info=True)
                 return {
                     'success': False,
                     'message': msg
                 }
+            finally:
+                self.log.info(('{} "{}": Finished').format(self.type, label))
         return wrapper_launch
 
     @property
@@ -230,7 +231,7 @@ class BaseHandler(object):
         # Get entity type and make sure it is lower cased. Most places except
         # the component tab in the Sidebar will use lower case notation.
         entity_type = entity.get('entityType').replace('_', '').lower()
-        
+
         if session is None:
             session = self.session
 
diff --git a/pype/lib.py b/pype/lib.py
index e443881d39..66cef40674 100644
--- a/pype/lib.py
+++ b/pype/lib.py
@@ -45,13 +45,21 @@ def get_hierarchy(asset_name=None):
     if not asset_name:
         asset_name = io.Session.get("AVALON_ASSET", os.environ["AVALON_ASSET"])
 
-    asset = io.find_one({
+    asset_entity = io.find_one({
         "type": 'asset',
         "name": asset_name
     })
 
+    not_set = "PARENTS_NOT_SET"
+    entity_parents = entity.get("data", {}).get("parents", not_set)
+
+    # If entity already have parents then just return joined
+    if entity_parents != not_set:
+        return "/".join(entity_parents)
+
+    # Else query parents through visualParents and store result to entity
     hierarchy_items = []
-    entity = asset
+    entity = asset_entity
     while True:
         parent_id = entity.get("data", {}).get("visualParent")
         if not parent_id:
@@ -59,6 +67,14 @@ def get_hierarchy(asset_name=None):
         entity = io.find_one({"_id": parent_id})
         hierarchy_items.append(entity["name"])
 
+    # Add parents to entity data for next query
+    entity_data = asset_entity.get("data", {})
+    entity_data["parents"] = hierarchy_items
+    io.update_many(
+        {"_id": asset_entity["_id"]},
+        {"$set": {"data": entity_data}}
+    )
+
     return "/".join(hierarchy_items)
 
 
diff --git a/pype/nukestudio/__init__.py b/pype/nukestudio/__init__.py
index 834455168a..2e7ccdd675 100644
--- a/pype/nukestudio/__init__.py
+++ b/pype/nukestudio/__init__.py
@@ -4,7 +4,17 @@ from avalon.tools import workfiles
 from avalon import api as avalon
 from pyblish import api as pyblish
 
+from .workio import (
+    open,
+    save,
+    current_file,
+    has_unsaved_changes,
+    file_extensions,
+    work_root
+)
+
 from .. import api
+
 from .menu import (
     install as menu_install,
     _update_menu_task_label
@@ -17,6 +27,17 @@ import hiero
 
 log = Logger().get_logger(__name__, "nukestudio")
 
+__all__ = [
+    # Workfiles API
+    "open",
+    "save",
+    "current_file",
+    "has_unsaved_changes",
+    "file_extensions",
+    "work_root",
+    ]
+
+
 AVALON_CONFIG = os.getenv("AVALON_CONFIG", "pype")
 
 PARENT_DIR = os.path.dirname(__file__)
diff --git a/pype/nukestudio/workio.py b/pype/nukestudio/workio.py
new file mode 100644
index 0000000000..7fbd85a708
--- /dev/null
+++ b/pype/nukestudio/workio.py
@@ -0,0 +1,61 @@
+"""Host API required Work Files tool"""
+import os
+import hiero
+
+
+def file_extensions():
+    return [".hrox"]
+
+
+def has_unsaved_changes():
+    return hiero.core.projects()[-1]
+
+
+def save(filepath):
+    project = hiero.core.projects()[-1]
+
+    if project:
+        project.saveAs(filepath)
+    else:
+        project = hiero.core.newProject()
+        project.saveAs(filepath)
+
+
+def open(filepath):
+    try:
+        hiero.core.openProject(filepath)
+        return True
+    except Exception as e:
+        try:
+            from PySide.QtGui import *
+            from PySide.QtCore import *
+        except:
+            from PySide2.QtGui import *
+            from PySide2.QtWidgets import *
+            from PySide2.QtCore import *
+
+        prompt = "Cannot open the selected file: `{}`".format(e)
+        hiero.core.log.error(prompt)
+        dialog = QMessageBox.critical(
+            hiero.ui.mainWindow(), "Error", unicode(prompt))
+
+
+def current_file():
+    import os
+    import hiero
+
+    current_file = hiero.core.projects()[-1].path()
+    normalised = os.path.normpath(current_file)
+
+    # Unsaved current file
+    if normalised is '':
+        return "NOT SAVED"
+
+    return normalised
+
+
+
+def work_root():
+    from avalon import api
+
+    return os.path.normpath(api.Session["AVALON_WORKDIR"]).replace("\\", "/")
diff --git a/pype/plugins/maya/publish/validate_attributes.py b/pype/plugins/maya/publish/validate_attributes.py
index 8b0f14b8b2..654df1ce72 100644
--- a/pype/plugins/maya/publish/validate_attributes.py
+++ b/pype/plugins/maya/publish/validate_attributes.py
@@ -66,7 +66,7 @@ class ValidateAttributes(pyblish.api.ContextPlugin):
                     )
 
             # Get invalid attributes.
-            nodes = [pm.PyNode(x) for x in instance]
+            nodes = pm.ls()
             for node in nodes:
                 name = node.name(stripNamespace=True)
                 if name not in attributes.keys():
diff --git a/pype/plugins/nuke/publish/remove_ouput_node.py b/pype/plugins/nuke/publish/remove_ouput_node.py
index a5e80e511b..12361595fe 100644
--- a/pype/plugins/nuke/publish/remove_ouput_node.py
+++ b/pype/plugins/nuke/publish/remove_ouput_node.py
@@ -7,7 +7,7 @@ class RemoveOutputNode(pyblish.api.ContextPlugin):
 
     """
     label = 'Output Node Remove'
-    order = pyblish.api.IntegratorOrder
+    order = pyblish.api.IntegratorOrder + 0.4
     families = ["workfile"]
     hosts = ['nuke']
 
diff --git a/pype/plugins/nuke/publish/validate_rendered_frames.py b/pype/plugins/nuke/publish/validate_rendered_frames.py
index 968afe2a5b..85cbe7b2c0 100644
--- a/pype/plugins/nuke/publish/validate_rendered_frames.py
+++ b/pype/plugins/nuke/publish/validate_rendered_frames.py
@@ -11,7 +11,7 @@ class RepairCollectionAction(pyblish.api.Action):
     icon = "wrench"
 
     def process(self, context, plugin):
-        self.log.info(context[0][1])
+        self.log.info(context[0][0])
         files_remove = [os.path.join(context[0].data["outputDir"], f)
                         for r in context[0].data.get("representations", [])
                         for f in r.get("files", [])
@@ -20,7 +20,7 @@ class RepairCollectionAction(pyblish.api.Action):
         for f in files_remove:
             os.remove(f)
             self.log.debug("removing file: {}".format(f))
-        context[0][1]["render"].setValue(True)
+        context[0][0]["render"].setValue(True)
         self.log.info("Rendering toggled ON")