diff --git a/apps/web/src/contexts/ModulesFilterContext.tsx b/apps/web/src/contexts/ModulesFilterContext.tsx
index e8ef26b..de3edc4 100644
--- a/apps/web/src/contexts/ModulesFilterContext.tsx
+++ b/apps/web/src/contexts/ModulesFilterContext.tsx
@@ -36,6 +36,8 @@ export interface ModulesFilterContextValue extends ModulesFilterState {
   setDueAfter: (v: string | null) => void;
   setDueBefore: (v: string | null) => void;
   updateFilter: (updater: (prev: ModulesFilterState) => Partial<ModulesFilterState>) => void;
+  /** Reset every filter back to defaults (e.g. when switching projects). */
+  reset: () => void;
 }
 
 const defaultState: ModulesFilterState = {
@@ -67,6 +69,8 @@ export function ModulesFilterProvider({ children }: { children: ReactNode }) {
     [],
   );
 
+  const reset = useCallback(() => setState(defaultState), []);
+
   const setSearch = useCallback((v: string) => {
     setState((prev) => ({ ...prev, search: v }));
   }, []);
@@ -143,6 +147,7 @@ export function ModulesFilterProvider({ children }: { children: ReactNode }) {
       setDueAfter,
       setDueBefore,
       updateFilter,
+      reset,
     }),
     [
       state,
@@ -161,6 +166,7 @@ export function ModulesFilterProvider({ children }: { children: ReactNode }) {
       setDueAfter,
       setDueBefore,
       updateFilter,
+      reset,
     ],
   );
 
diff --git a/apps/web/src/pages/ModulesPage.tsx b/apps/web/src/pages/ModulesPage.tsx
index 4bcfeb9..8dad5c9 100644
--- a/apps/web/src/pages/ModulesPage.tsx
+++ b/apps/web/src/pages/ModulesPage.tsx
@@ -157,6 +157,12 @@ function ModuleProgressCircle({ progress }: { progress: number }) {
   );
 }
 
+// The modules filter provider lives at the app-shell root and outlives this
+// page, so its status/lead/member ids (which are project-specific) would carry
+// over into another project. Track the project the filter was last set for at
+// module scope so it survives remounts, and reset when the project changes.
+let lastFilteredProjectId: string | undefined;
+
 export function ModulesPage() {
   const { t } = useTranslation();
   const { workspaceSlug, projectId } = useParams<{
@@ -164,6 +170,13 @@ export function ModulesPage() {
     projectId: string;
   }>();
   const filter = useModulesFilter();
+  const resetFilter = filter.reset;
+  useEffect(() => {
+    if (projectId && projectId !== lastFilteredProjectId) {
+      lastFilteredProjectId = projectId;
+      resetFilter();
+    }
+  }, [projectId, resetFilter]);
   const [workspace, setWorkspace] = useState<WorkspaceApiResponse | null>(null);
   const [project, setProject] = useState<ProjectApiResponse | null>(null);
   const [modules, setModules] = useState<ModuleApiResponse[]>([]);
diff --git a/apps/web/src/pages/WorkspaceViewsPage.tsx b/apps/web/src/pages/WorkspaceViewsPage.tsx
index 78f4ddf..3e95a71 100644
--- a/apps/web/src/pages/WorkspaceViewsPage.tsx
+++ b/apps/web/src/pages/WorkspaceViewsPage.tsx
@@ -183,6 +183,11 @@ export function WorkspaceViewsPage() {
     if (prevViewIdRef.current !== viewId) {
       prevViewIdRef.current = viewId;
       viewAppliedRef.current = false;
+      // Static views (all-issues, assigned, etc.) carry no saved filters, so
+      // clear any left over from a custom view instead of keeping them applied.
+      if (!isCustomViewId(viewId)) {
+        setFilters(parseWorkspaceViewFiltersFromSearchParams(new URLSearchParams()));
+      }
     }
     if (!workspaceSlug || !viewId || !isCustomViewId(viewId) || viewAppliedRef.current) return;
     viewAppliedRef.current = true;