diff --git a/frontend/cypress/e2e/task/task.spec.ts b/frontend/cypress/e2e/task/task.spec.ts
index 9a90471dd..19cd60ac7 100644
--- a/frontend/cypress/e2e/task/task.spec.ts
+++ b/frontend/cypress/e2e/task/task.spec.ts
@@ -509,6 +509,7 @@ describe('Task', () => {
 			TaskBucketFactory.create(1, {
 				task_id: tasks[0].id,
 				bucket_id: buckets[0].id,
+				project_view_id: buckets[0].project_view_id,
 			})
 
 			cy.visit(`/projects/${projects[0].id}/4`)
@@ -901,6 +902,11 @@ describe('Task', () => {
 			})
 			const labels = LabelFactory.create(1)
 			LabelTaskFactory.truncate()
+			TaskBucketFactory.create(1, {
+				task_id: tasks[0].id,
+				bucket_id: buckets[0].id,
+				project_view_id: buckets[0].project_view_id,
+			})
 
 			cy.visit(`/projects/${projects[0].id}/4`)
 
diff --git a/pkg/models/kanban.go b/pkg/models/kanban.go
index 3122d5321..1a5d091fd 100644
--- a/pkg/models/kanban.go
+++ b/pkg/models/kanban.go
@@ -201,6 +201,7 @@ func GetTasksInBucketsForView(s *xorm.Session, view *ProjectView, projects []*Pr
 
 	tasks := []*Task{}
 
+	opts.projectViewID = view.ID
 	opts.sortby = []*sortParam{
 		{
 			projectViewID: view.ID,
diff --git a/pkg/models/task_collection.go b/pkg/models/task_collection.go
index efa19f47d..083131278 100644
--- a/pkg/models/task_collection.go
+++ b/pkg/models/task_collection.go
@@ -142,6 +142,10 @@ func getTaskFilterOptsFromCollection(tf *TaskCollection, projectView *ProjectVie
 		filterTimezone:     tf.FilterTimezone,
 	}
 
+	if projectView != nil {
+		opts.projectViewID = projectView.ID
+	}
+
 	opts.parsedFilters, err = getTaskFiltersFromFilterString(tf.Filter, tf.FilterTimezone)
 	return opts, err
 }
diff --git a/pkg/models/task_position.go b/pkg/models/task_position.go
index 96a10ff68..ea01711d8 100644
--- a/pkg/models/task_position.go
+++ b/pkg/models/task_position.go
@@ -118,6 +118,7 @@ func RecalculateTaskPositions(s *xorm.Session, view *ProjectView, a web.Auth) (e
 	log.Debugf("Recalculating task positions for view %d", view.ID)
 
 	opts := &taskSearchOptions{
+		projectViewID: view.ID,
 		sortby: []*sortParam{
 			{
 				projectViewID: view.ID,
diff --git a/pkg/models/task_search.go b/pkg/models/task_search.go
index e9fdb8acb..635a21a3d 100644
--- a/pkg/models/task_search.go
+++ b/pkg/models/task_search.go
@@ -350,7 +350,13 @@ func (d *dbTaskSearcher) Search(opts *taskSearchOptions) (tasks []*Task, totalCo
 	}
 
 	if joinTaskBuckets {
-		query = query.Join("LEFT", "task_buckets", "task_buckets.task_id = tasks.id")
+		joinCond := "task_buckets.task_id = tasks.id"
+		if opts.projectViewID > 0 {
+			joinCond += " AND task_buckets.project_view_id = ?"
+			query = query.Join("LEFT", "task_buckets", joinCond, opts.projectViewID)
+		} else {
+			query = query.Join("LEFT", "task_buckets", joinCond)
+		}
 	}
 	if expandSubtasks {
 		query = query.
@@ -419,7 +425,13 @@ func (d *dbTaskSearcher) Search(opts *taskSearchOptions) (tasks []*Task, totalCo
 
 	queryCount := d.s.Where(cond)
 	if joinTaskBuckets {
-		queryCount = queryCount.Join("LEFT", "task_buckets", "task_buckets.task_id = tasks.id")
+		joinCond := "task_buckets.task_id = tasks.id"
+		if opts.projectViewID > 0 {
+			joinCond += " AND task_buckets.project_view_id = ?"
+			queryCount = queryCount.Join("LEFT", "task_buckets", joinCond, opts.projectViewID)
+		} else {
+			queryCount = queryCount.Join("LEFT", "task_buckets", joinCond)
+		}
 	}
 	if expandSubtasks {
 		queryCount = queryCount.
diff --git a/pkg/models/task_search_test.go b/pkg/models/task_search_test.go
new file mode 100644
index 000000000..83e52700a
--- /dev/null
+++ b/pkg/models/task_search_test.go
@@ -0,0 +1,56 @@
+// Vikunja is a to-do list application to facilitate your life.
+// Copyright 2018-present Vikunja and contributors. All rights reserved.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+package models
+
+import (
+	"testing"
+
+	"code.vikunja.io/api/pkg/db"
+	"code.vikunja.io/api/pkg/user"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestKanbanViewBucketFiltering(t *testing.T) {
+	db.LoadAndAssertFixtures(t)
+	s := db.NewSession()
+	defer s.Close()
+
+	view, err := GetProjectViewByID(s, 4)
+	require.NoError(t, err)
+
+	project, err := GetProjectSimpleByID(s, view.ProjectID)
+	require.NoError(t, err)
+
+	buckets, err := GetTasksInBucketsForView(s, view, []*Project{project}, &taskSearchOptions{}, &user.User{ID: 1})
+	require.NoError(t, err)
+
+	taskBuckets := map[int64][]int64{}
+	for _, b := range buckets {
+		for _, tsk := range b.Tasks {
+			taskBuckets[tsk.ID] = append(taskBuckets[tsk.ID], b.ID)
+		}
+	}
+
+	for tid, bs := range taskBuckets {
+		assert.Lenf(t, bs, 1, "task %d appears in multiple buckets: %v", tid, bs)
+	}
+
+	for _, id := range []int64{40, 41, 42, 43, 44, 45, 46} {
+		assert.NotContains(t, taskBuckets, id)
+	}
+}
diff --git a/pkg/models/tasks.go b/pkg/models/tasks.go
index 0c49de38d..ef7222d3c 100644
--- a/pkg/models/tasks.go
+++ b/pkg/models/tasks.go
@@ -195,6 +195,7 @@ type taskSearchOptions struct {
 	isSavedFilter      bool
 	projectIDs         []int64
 	expand             []TaskCollectionExpandable
+	projectViewID      int64
 }
 
 // ReadAll is a dummy function to still have that endpoint documented