diff --git a/changes/44624-policies-automations-filter-unassigned b/changes/44624-policies-automations-filter-unassigned
new file mode 100644
index 00000000000..cee2ea740f3
--- /dev/null
+++ b/changes/44624-policies-automations-filter-unassigned
@@ -0,0 +1 @@
+* Fixed the Policies page automations filter disappearing from the UI when switching to the "Unassigned" fleet and selecting a different automation type.
diff --git a/frontend/pages/policies/ManagePoliciesPage/ManagePoliciesPage.tests.tsx b/frontend/pages/policies/ManagePoliciesPage/ManagePoliciesPage.tests.tsx
new file mode 100644
index 00000000000..297ea23ffdc
--- /dev/null
+++ b/frontend/pages/policies/ManagePoliciesPage/ManagePoliciesPage.tests.tsx
@@ -0,0 +1,188 @@
+import React from "react";
+import { screen, waitFor } from "@testing-library/react";
+import { http, HttpResponse } from "msw";
+
+import {
+  createCustomRenderer,
+  createMockRouter,
+  baseUrl,
+} from "test/test-utils";
+import mockServer from "test/mock-server";
+import createMockConfig from "__mocks__/configMock";
+import createMockUser from "__mocks__/userMock";
+import createMockPolicy from "__mocks__/policyMock";
+
+import ManagePoliciesPage from "./ManagePoliciesPage";
+
+const FLEET_WITH_POLICIES_ID = 1;
+const FLEET_WITHOUT_POLICIES_ID = 2;
+
+const getConfigHandler = () =>
+  http.get(baseUrl("/config"), () => HttpResponse.json(createMockConfig()));
+
+const getFleetHandler = () =>
+  http.get(baseUrl("/fleets/:id"), ({ params }) => {
+    const fleetId = Number(params.id);
+    const fleet = {
+      ...createMockConfig(),
+      id: fleetId,
+      name: `Fleet ${fleetId}`,
+    };
+    return HttpResponse.json({ team: fleet, fleet });
+  });
+
+const getFleetPoliciesHandler = () =>
+  http.get(baseUrl("/fleets/:fleetId/policies"), ({ params }) => {
+    const fleetId = Number(params.fleetId);
+    const policies =
+      fleetId === FLEET_WITH_POLICIES_ID
+        ? [
+            createMockPolicy({
+              id: 1,
+              name: "Software policy",
+              team_id: fleetId,
+              install_software: { name: "Zoom", software_title_id: 1 },
+            }),
+          ]
+        : [];
+    return HttpResponse.json({ policies });
+  });
+
+const getFleetPoliciesCountHandler = () =>
+  http.get(baseUrl("/fleets/:fleetId/policies/count"), ({ params }) => {
+    const fleetId = Number(params.fleetId);
+    return HttpResponse.json({
+      count: fleetId === FLEET_WITH_POLICIES_ID ? 1 : 0,
+    });
+  });
+
+const getGlobalPoliciesHandler = () =>
+  http.get(baseUrl("/policies"), () => HttpResponse.json({ policies: [] }));
+
+const getGlobalPoliciesCountHandler = () =>
+  http.get(baseUrl("/policies/count"), () => HttpResponse.json({ count: 0 }));
+
+const getAutomationFilterControl = (): HTMLElement => {
+  const control = document.querySelector(
+    ".manage-policies-page__filter-automation-dropdown .react-select__control"
+  );
+  if (!control) {
+    throw new Error("Automations filter control not found");
+  }
+  return control as HTMLElement;
+};
+
+const setupHandlers = () => {
+  mockServer.use(
+    getConfigHandler(),
+    getFleetHandler(),
+    getFleetPoliciesHandler(),
+    getFleetPoliciesCountHandler(),
+    getGlobalPoliciesHandler(),
+    getGlobalPoliciesCountHandler()
+  );
+};
+
+describe("ManagePoliciesPage - automations filter", () => {
+  const renderPage = (fleetId: string, automationType?: string) => {
+    setupHandlers();
+
+    const render = createCustomRenderer({
+      withBackendMock: true,
+      context: {
+        app: {
+          currentUser: createMockUser({ global_role: "admin" }),
+          isGlobalAdmin: true,
+          isOnGlobalTeam: true,
+          isPremiumTier: true,
+          availableTeams: [
+            { id: -1, name: "All fleets" },
+            { id: 0, name: "Unassigned" },
+            { id: FLEET_WITH_POLICIES_ID, name: "Fleet with policies" },
+            { id: FLEET_WITHOUT_POLICIES_ID, name: "Fleet without policies" },
+          ],
+          config: createMockConfig(),
+          setCurrentTeam: jest.fn(),
+          setFilteredPoliciesPath: jest.fn(),
+          setConfig: jest.fn(),
+        },
+      },
+    });
+
+    const query: Record<string, string> = { fleet_id: fleetId };
+    if (automationType) {
+      query.automation_type = automationType;
+    }
+
+    return render(
+      <ManagePoliciesPage
+        router={createMockRouter()}
+        location={{
+          action: "PUSH",
+          hash: "",
+          key: "",
+          pathname: "/policies/manage",
+          query,
+          search: `?${new URLSearchParams(query).toString()}`,
+        }}
+      />
+    );
+  };
+
+  it("keeps the automations filter dropdown visible and enabled for a fleet with no policies when a filter is present in the URL", async () => {
+    renderPage(FLEET_WITHOUT_POLICIES_ID.toString(), "software");
+
+    await waitFor(() => {
+      expect(
+        screen.getByText("No policies match the current filters.")
+      ).toBeInTheDocument();
+    });
+
+    // Per the fix for #44624: when a filter is present in the query params,
+    // the automations filter dropdown must remain visible and enabled (and
+    // reflect the selected filter) even though this fleet has zero policies.
+    expect(screen.getByText("Software")).toBeInTheDocument();
+    expect(getAutomationFilterControl()).not.toHaveClass(
+      "react-select__control--is-disabled"
+    );
+  });
+
+  it("offers software/scripts/conditional access automation types for the 'Unassigned' fleet, but not calendar", async () => {
+    const { user } = renderPage("0", "software");
+
+    await waitFor(() => {
+      expect(
+        screen.getByText("No policies match the current filters.")
+      ).toBeInTheDocument();
+    });
+
+    // The selected filter persists (sticky), matching what's in the URL.
+    expect(screen.getByText("Software")).toBeInTheDocument();
+
+    // "Unassigned" is a real, policy-bearing fleet (unlike "All fleets", which
+    // is restricted to webhook/ticket-only automations) -- it should offer
+    // every automation type EXCEPT calendar events, which
+    // PolicyAutomationsFields hardcodes as fleet-only (never available for
+    // "All fleets" or "Unassigned").
+    await user.click(getAutomationFilterControl());
+
+    expect(screen.getByText("Scripts")).toBeInTheDocument();
+    expect(screen.getByText("Conditional access")).toBeInTheDocument();
+    expect(screen.queryByText("Calendar")).not.toBeInTheDocument();
+  });
+
+  it("rejects an automation_type=calendar query param for the 'Unassigned' fleet, since calendar isn't a valid option there", async () => {
+    renderPage("0", "calendar");
+
+    await waitFor(() => {
+      expect(
+        screen.getByText("No policies for this fleet")
+      ).toBeInTheDocument();
+    });
+
+    // "calendar" isn't a valid filter for "Unassigned", so it must not stick
+    // as the selected value -- the filter should fall back to its default.
+    expect(screen.getByText("All automations")).toBeInTheDocument();
+    expect(screen.queryByText("Calendar")).not.toBeInTheDocument();
+  });
+});
diff --git a/frontend/pages/policies/ManagePoliciesPage/ManagePoliciesPage.tsx b/frontend/pages/policies/ManagePoliciesPage/ManagePoliciesPage.tsx
index 86250fd1f5d..9d97220a68f 100644
--- a/frontend/pages/policies/ManagePoliciesPage/ManagePoliciesPage.tsx
+++ b/frontend/pages/policies/ManagePoliciesPage/ManagePoliciesPage.tsx
@@ -28,8 +28,8 @@ import {
 } from "interfaces/policy";
 import {
   API_ALL_TEAMS_ID,
+  API_NO_TEAM_ID,
   APP_CONTEXT_ALL_TEAMS_ID,
-  ITeamConfig,
 } from "interfaces/team";
 import { isQueryablePlatform } from "interfaces/platform";
 
@@ -105,6 +105,22 @@ const AUTOMATION_TYPES: AutomationType[] = [
 
 const GLOBAL_AUTOMATION_TYPES: GlobalPoliciesAutomationType[] = ["other"];
 
+const getValidAutomationTypesForTeam = (
+  teamIdForApi: number | undefined
+): (AutomationType | GlobalPoliciesAutomationType)[] => {
+  if (teamIdForApi === undefined) {
+    // All fleets → global policies only support webhook/ticket automations.
+    return GLOBAL_AUTOMATION_TYPES;
+  }
+  if (teamIdForApi === API_NO_TEAM_ID) {
+    // Unassigned supports every automation type EXCEPT calendar events,
+    // which PolicyAutomationsFields hardcodes as fleet-only (never available
+    // for "All fleets" or "Unassigned").
+    return AUTOMATION_TYPES.filter((type) => type !== "calendar");
+  }
+  return AUTOMATION_TYPES;
+};
+
 const baseClass = "manage-policies-page";
 
 const ManagePolicyPage = ({
@@ -191,9 +207,7 @@ const ManagePolicyPage = ({
       return null;
     }
 
-    const validValues = isAllTeamsSelected
-      ? GLOBAL_AUTOMATION_TYPES
-      : AUTOMATION_TYPES;
+    const validValues = getValidAutomationTypesForTeam(teamIdForApi);
 
     return (validValues as string[]).includes(automationQueryParam)
       ? automationQueryParam
@@ -782,12 +796,14 @@ const ManagePolicyPage = ({
           !automationFilter &&
           !targetedPlatformParam;
 
-        // No team ID = All fleets → only show "all" and "other" options
-        const optionsForTeam = teamIdForApi
-          ? automationFilterOptions
-          : automationFilterOptions.filter((opt) =>
-              ["all", "other"].includes(opt.value as string)
-            );
+        const validAutomationTypesForTeam = getValidAutomationTypesForTeam(
+          teamIdForApi
+        );
+        const optionsForTeam = automationFilterOptions.filter(
+          (opt) =>
+            opt.value === "all" ||
+            (validAutomationTypesForTeam as string[]).includes(opt.value)
+        );
 
         return (
           <DropdownWrapper