---
title: "Task List flickers while previewing a Flow"
slug: "task-list-flickers-while-previewing-a-flow"
updated: 2025-08-20T04:08:40Z
published: 2025-08-20T04:08:40Z
---

> ## Documentation Index
> Fetch the complete documentation index at: https://support.whatfix.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Task List flickers while previewing a Flow

## Issue

When you try to preview a Flow from a Task List, the Task List flickers or opens and closes unexpectedly.

## Probable Causes

- Studio is unable to detect the correct UI element to launch the Flow. As a result, the Task List might behave incorrectly.
- The configured CSS Selectors don't point to the correct element or are unable to identify the element.
- One or more CSS Selectors are invalid. For example, the class or id of an element is incorrectly copied. For more information, see [Selected Element conditions as Visibility Rules](/studio/docs/selected-element-condition-rules).

## Suggested Solutions

- Reselect the element and verify if the CSS Selectors are configured correctly. For more information, see [How to find the CSS Selector of an element?](/studio/docs/identify-an-elements-css-selector)
- Verify if the starting URL of the Flow is correct. For more information, see [Change the source URL of a Flow](/studio/docs/changing-the-source-url-of-a-flow-to-a-dynamic-url).
- Use [Troubleshoot Task List using Diagnostics](/studio/docs/troubleshoot-task-lists-using-whatfix-diagnostics) to quickly identify why the Task List is not displaying on your application.