diff --git a/openpype/hooks/pre_add_last_workfile_arg.py b/openpype/hooks/pre_add_last_workfile_arg.py
index d5a9a41e5a..49fb54d263 100644
--- a/openpype/hooks/pre_add_last_workfile_arg.py
+++ b/openpype/hooks/pre_add_last_workfile_arg.py
@@ -23,7 +23,7 @@ class AddLastWorkfileToLaunchArgs(PreLaunchHook):
         "blender",
         "photoshop",
         "tvpaint",
-        "substance",
+        "substancepainter",
         "aftereffects"
     ]
 
diff --git a/openpype/hosts/substancepainter/api/lib.py b/openpype/hosts/substancepainter/api/lib.py
index 22dc3059fc..754f8a2bd6 100644
--- a/openpype/hosts/substancepainter/api/lib.py
+++ b/openpype/hosts/substancepainter/api/lib.py
@@ -189,7 +189,7 @@ def get_export_templates(config, format="png", strip_folder=True):
         dict: The expected output maps.
 
     """
-    folder = config["exportPath"]
+    folder = config["exportPath"].replace("\\", "/")
     preset = config["defaultExportPreset"]
     cmd = f'alg.mapexport.getPathsExportDocumentMaps("{preset}", "{folder}", "{format}")'  # noqa
     result = substance_painter.js.evaluate(cmd)
@@ -197,6 +197,7 @@ def get_export_templates(config, format="png", strip_folder=True):
     if strip_folder:
         for _stack, maps in result.items():
             for map_template, map_filepath in maps.items():
+                map_filepath = map_filepath.replace("\\", "/")
                 assert map_filepath.startswith(folder)
                 map_filename = map_filepath[len(folder):].lstrip("/")
                 maps[map_template] = map_filename
@@ -394,7 +395,7 @@ def get_parsed_export_maps(config):
     from .colorspace import get_project_channel_data
 
     outputs = substance_painter.export.list_project_textures(config)
-    templates = get_export_templates(config)
+    templates = get_export_templates(config, strip_folder=False)
 
     # Get all color spaces set for the current project
     project_colorspaces = set(
@@ -441,7 +442,10 @@ def get_parsed_export_maps(config):
             # We strip explicitly using the full parent export path instead of
             # using `os.path.basename` because export template is allowed to
             # have subfolders in its template which we want to match against
-            assert filepath.startswith(export_path)
+            filepath = filepath.replace("\\", "/")
+            assert filepath.startswith(export_path), (
+                f"Filepath {filepath} must start with folder {export_path}"
+            )
             filename = filepath[len(export_path):]
 
             for template, regex in template_regex.items():
diff --git a/openpype/hosts/substancepainter/plugins/publish/collect_textureset_images.py b/openpype/hosts/substancepainter/plugins/publish/collect_textureset_images.py
index 0e445c9c1c..8d5d19fd36 100644
--- a/openpype/hosts/substancepainter/plugins/publish/collect_textureset_images.py
+++ b/openpype/hosts/substancepainter/plugins/publish/collect_textureset_images.py
@@ -60,7 +60,7 @@ class CollectTextureSet(pyblish.api.InstancePlugin):
         representation = {
             'name': ext.lstrip("."),
             'ext': ext.lstrip("."),
-            'files': fnames,
+            'files': fnames if len(fnames) > 1 else fnames[0],
         }
 
         # Mark as UDIM explicitly if it has UDIM tiles.
diff --git a/openpype/settings/defaults/system_settings/applications.json b/openpype/settings/defaults/system_settings/applications.json
index 30c692d0e6..d78b54fa05 100644
--- a/openpype/settings/defaults/system_settings/applications.json
+++ b/openpype/settings/defaults/system_settings/applications.json
@@ -1315,7 +1315,7 @@
             }
         }
     },
-    "substance": {
+    "substancepainter": {
         "enabled": true,
         "label": "Substance Painter",
         "icon": "app_icons/substancepainter.png",
diff --git a/openpype/settings/entities/schemas/system_schema/host_settings/schema_substancepainter.json b/openpype/settings/entities/schemas/system_schema/host_settings/schema_substancepainter.json
index 513f98c610..fb3b21e63f 100644
--- a/openpype/settings/entities/schemas/system_schema/host_settings/schema_substancepainter.json
+++ b/openpype/settings/entities/schemas/system_schema/host_settings/schema_substancepainter.json
@@ -1,6 +1,6 @@
 {
     "type": "dict",
-    "key": "substance",
+    "key": "substancepainter",
     "label": "Substance Painter",
     "collapsible": true,
     "checkbox_key": "enabled",