diff --git a/src/components/BacklogView.tsx b/src/components/BacklogView.tsx
index aeec826..2cef96e 100644
--- a/src/components/BacklogView.tsx
+++ b/src/components/BacklogView.tsx
@@ -309,7 +309,14 @@ export function BacklogView({ searchQuery = "" }: BacklogViewProps) {
   // Get current active sprint
   // Treat end date as end-of-day (23:59:59) to handle timezone issues
   const now = new Date()
-  const currentSprint = sprints.find((s) => {
+  const projectSprints = selectedProjectId
+    ? sprints.filter((s) => s.projectId === selectedProjectId)
+    : sprints
+  const projectTasks = selectedProjectId
+    ? tasks.filter((t) => t.projectId === selectedProjectId)
+    : tasks
+
+  const currentSprint = projectSprints.find((s) => {
     if (s.status !== "active") return false
     const sprintStart = parseSprintStart(s.startDate)
     const sprintEnd = parseSprintEnd(s.endDate)
@@ -317,20 +324,20 @@ export function BacklogView({ searchQuery = "" }: BacklogViewProps) {
   })
 
   // Get other sprints (not current)
-  const otherSprints = sprints.filter((s) => s.id !== currentSprint?.id)
+  const otherSprints = projectSprints.filter((s) => s.id !== currentSprint?.id)
 
   // Sort tasks by updatedAt (descending) - latest first
   const sortByUpdated = (a: Task, b: Task) => new Date(b.updatedAt).getTime() - new Date(a.updatedAt).getTime()
 
   // Get tasks by section (sorted by last updated)
   const currentSprintTasks = currentSprint
-    ? tasks.filter((t) => t.sprintId === currentSprint.id && matchesSearch(t)).sort(sortByUpdated)
+    ? projectTasks.filter((t) => t.sprintId === currentSprint.id && matchesSearch(t)).sort(sortByUpdated)
     : []
 
-  const backlogTasks = tasks.filter((t) => !t.sprintId && matchesSearch(t)).sort(sortByUpdated)
+  const backlogTasks = projectTasks.filter((t) => !t.sprintId && matchesSearch(t)).sort(sortByUpdated)
 
   // Get active task for drag overlay
-  const activeTask = activeId ? tasks.find((t) => t.id === activeId) : null
+  const activeTask = activeId ? projectTasks.find((t) => t.id === activeId) : null
 
   const handleDragStart = (event: DragStartEvent) => {
     setActiveId(event.active.id as string)
@@ -344,7 +351,7 @@ export function BacklogView({ searchQuery = "" }: BacklogViewProps) {
 
     const taskId = active.id as string
     const overId = over.id as string
-    const overTask = tasks.find((t) => t.id === overId)
+    const overTask = projectTasks.find((t) => t.id === overId)
 
     const destinationId = overTask
       ? overTask.sprintId
@@ -418,8 +425,7 @@ export function BacklogView({ searchQuery = "" }: BacklogViewProps) {
         {otherSprints
           .sort((a, b) => parseSprintStart(a.startDate).getTime() - parseSprintStart(b.startDate).getTime())
           .map((sprint) => {
-            const sprintTasks = tasks.filter((t) => t.sprintId === sprint.id && matchesSearch(t)).sort(sortByUpdated)
-            console.log(`Sprint ${sprint.name}: ${sprintTasks.length} tasks`, sprintTasks.map(t => t.title))
+            const sprintTasks = projectTasks.filter((t) => t.sprintId === sprint.id && matchesSearch(t)).sort(sortByUpdated)
             return (
               <SectionDropZone key={sprint.id} id={`sprint-${sprint.id}`}>
                 <TaskSection