diff --git a/api/schemas/schemas.py b/api/schemas/schemas.py
index 44ffc9335..3935841cd 100644
--- a/api/schemas/schemas.py
+++ b/api/schemas/schemas.py
@@ -972,33 +972,51 @@ class CardSessionsSchema(_TimedSchema, _PaginatedSchema):
 
         return self
 
+    # We don't need this as the UI is expecting filters to override the full series' filters
+    # @model_validator(mode="after")
+    # def __merge_out_filters_with_series(self):
+    #     for f in self.filters:
+    #         for s in self.series:
+    #             found = False
+    #
+    #             if f.is_event:
+    #                 sub = s.filter.events
+    #             else:
+    #                 sub = s.filter.filters
+    #
+    #             for e in sub:
+    #                 if f.type == e.type and f.operator == e.operator:
+    #                     found = True
+    #                     if f.is_event:
+    #                         # If extra event: append value
+    #                         for v in f.value:
+    #                             if v not in e.value:
+    #                                 e.value.append(v)
+    #                     else:
+    #                         # If extra filter: override value
+    #                         e.value = f.value
+    #             if not found:
+    #                 sub.append(f)
+    #
+    #     self.filters = []
+    #
+    #     return self
+
+    # UI is expecting filters to override the full series' filters
     @model_validator(mode="after")
-    def __merge_out_filters_with_series(self):
-        for f in self.filters:
-            for s in self.series:
-                found = False
-
+    def __override_series_filters_with_outer_filters(self):
+        if len(self.filters) > 0:
+            events = []
+            filters = []
+            for f in self.filters:
                 if f.is_event:
-                    sub = s.filter.events
+                    events.append(f)
                 else:
-                    sub = s.filter.filters
-
-                for e in sub:
-                    if f.type == e.type and f.operator == e.operator:
-                        found = True
-                        if f.is_event:
-                            # If extra event: append value
-                            for v in f.value:
-                                if v not in e.value:
-                                    e.value.append(v)
-                        else:
-                            # If extra filter: override value
-                            e.value = f.value
-                if not found:
-                    sub.append(f)
-
+                    filters.append(f)
+            for s in self.series:
+                s.filter.events = events
+                s.filter.filters = filters
         self.filters = []
-
         return self