diff --git a/openpype/lib/applications.py b/openpype/lib/applications.py
index d82b7cd847..bed57d7022 100644
--- a/openpype/lib/applications.py
+++ b/openpype/lib/applications.py
@@ -191,26 +191,32 @@ class Application:
         self.full_label = full_label
         self._environment = data.get("environment") or {}
 
+        arguments = data.get("arguments")
+        if isinstance(arguments, dict):
+            arguments = arguments.get(platform.system().lower())
+
+        if not arguments:
+            arguments = []
+        self.arguments = arguments
+
+        if "executables" not in data:
+            self.executables = [
+                UndefinedApplicationExecutable()
+            ]
+            return
+
         _executables = data["executables"]
+        if isinstance(_executables, dict):
+            _executables = _executables.get(platform.system().lower())
+
         if not _executables:
             _executables = []
 
-        elif isinstance(_executables, dict):
-            _executables = _executables.get(platform.system().lower()) or []
-
-        _arguments = data["arguments"]
-        if not _arguments:
-            _arguments = []
-
-        elif isinstance(_arguments, dict):
-            _arguments = _arguments.get(platform.system().lower()) or []
-
         executables = []
         for executable in _executables:
             executables.append(ApplicationExecutable(executable))
 
         self.executables = executables
-        self.arguments = _arguments
 
     def __repr__(self):
         return "<{}> - {}".format(self.__class__.__name__, self.full_name)
@@ -484,6 +490,27 @@ class ApplicationExecutable:
         return bool(self._realpath())
 
 
+class UndefinedApplicationExecutable(ApplicationExecutable):
+    """Some applications do not require executable path from settings.
+
+    In that case this class is used to "fake" existing executable.
+    """
+    def __init__(self):
+        pass
+
+    def __str__(self):
+        return self.__class__.__name__
+
+    def __repr__(self):
+        return "<{}>".format(self.__class__.__name__)
+
+    def as_args(self):
+        return []
+
+    def exists(self):
+        return True
+
+
 @six.add_metaclass(ABCMeta)
 class LaunchHook:
     """Abstract base class of launch hook."""
diff --git a/openpype/settings/defaults/system_settings/applications.json b/openpype/settings/defaults/system_settings/applications.json
index 020924db67..72cd010cf2 100644
--- a/openpype/settings/defaults/system_settings/applications.json
+++ b/openpype/settings/defaults/system_settings/applications.json
@@ -1101,16 +1101,6 @@
         "variants": {
             "4-26": {
                 "use_python_2": false,
-                "executables": {
-                    "windows": [],
-                    "darwin": [],
-                    "linux": []
-                },
-                "arguments": {
-                    "windows": [],
-                    "darwin": [],
-                    "linux": []
-                },
                 "environment": {}
             }
         }
diff --git a/openpype/settings/entities/schemas/system_schema/host_settings/schema_unreal.json b/openpype/settings/entities/schemas/system_schema/host_settings/schema_unreal.json
index df5ec0e6fa..133d6c9eaf 100644
--- a/openpype/settings/entities/schemas/system_schema/host_settings/schema_unreal.json
+++ b/openpype/settings/entities/schemas/system_schema/host_settings/schema_unreal.json
@@ -30,7 +30,12 @@
                 "children": [
                     {
                         "type": "schema_template",
-                        "name": "template_host_variant_items"
+                        "name": "template_host_variant_items",
+                        "skip_paths": [
+                            "executables",
+                            "separator",
+                            "arguments"
+                        ]
                     }
                 ]
             }
diff --git a/openpype/settings/entities/schemas/system_schema/host_settings/template_host_variant_items.json b/openpype/settings/entities/schemas/system_schema/host_settings/template_host_variant_items.json
index ab4d2374a3..409efb006e 100644
--- a/openpype/settings/entities/schemas/system_schema/host_settings/template_host_variant_items.json
+++ b/openpype/settings/entities/schemas/system_schema/host_settings/template_host_variant_items.json
@@ -14,6 +14,7 @@
         "placeholder": "Executable path"
     },
     {
+        "key": "separator",
         "type":"separator"
     },
     {
diff --git a/openpype/settings/lib.py b/openpype/settings/lib.py
index f61166fa69..4a3e66de33 100644
--- a/openpype/settings/lib.py
+++ b/openpype/settings/lib.py
@@ -532,7 +532,11 @@ def apply_local_settings_on_system_settings(system_settings, local_settings):
 
         variants = system_settings["applications"][app_group_name]["variants"]
         for app_name, app_value in value.items():
-            if not app_value or app_name not in variants:
+            if (
+                not app_value
+                or app_name not in variants
+                or "executables" not in variants[app_name]
+            ):
                 continue
 
             executable = app_value.get("executable")
diff --git a/openpype/tools/settings/local_settings/apps_widget.py b/openpype/tools/settings/local_settings/apps_widget.py
index 5f4e5dd1c5..f228ecc826 100644
--- a/openpype/tools/settings/local_settings/apps_widget.py
+++ b/openpype/tools/settings/local_settings/apps_widget.py
@@ -121,6 +121,9 @@ class AppGroupWidget(QtWidgets.QWidget):
 
         widgets_by_variant_name = {}
         for variant_name, variant_entity in valid_variants.items():
+            if "executables" not in variant_entity:
+                continue
+
             variant_widget = AppVariantWidget(
                 group_label, variant_name, variant_entity, content_widget
             )