diff --git a/unshackle/services/Netflix/__init__.py b/unshackle/services/Netflix/__init__.py
index 2a1d45a..9ddd016 100644
--- a/unshackle/services/Netflix/__init__.py
+++ b/unshackle/services/Netflix/__init__.py
@@ -198,8 +198,14 @@ class Netflix(Service):
                 if self.profile is not None:
                     self.log.info(f"Requested profiles: {self.profile}")
                 else:
-                    qc_720_profile = [x for x in self.config["profiles"]["video"][self.vcodec.extension.upper()]["QC"] if "l40" not in x and 720 in self.quality]
-                    qc_manifest = self.get_manifest(title, qc_720_profile if 720 in self.quality else self.config["profiles"]["video"][self.vcodec.extension.upper()]["QC"])
+                    requested_qualities = self.quality or []
+                    qc_profiles = self.config["profiles"]["video"][self.vcodec.extension.upper()]["QC"]
+                    use_720_qc_only = len(requested_qualities) == 1 and 720 in requested_qualities
+
+                    if use_720_qc_only:
+                        qc_profiles = [x for x in qc_profiles if "l40" not in x]
+
+                    qc_manifest = self.get_manifest(title, qc_profiles)
                     qc_tracks = self.manifest_as_tracks(qc_manifest, title, False)
                     tracks.add(qc_tracks.videos)
 
@@ -693,7 +699,7 @@ class Netflix(Service):
                         "manifestVersion": "v2",
                         "osName": "windows",
                         "osVersion": "10.0",
-                        "platform": "138.0.0.0",
+                        "platform": "145.0.0.0",
                         "profilesGroups": [{
                             "name": "default",
                             "profiles": video_profiles