Run from here or Debug from here buttons disabled when using Katalon Studio offline

This document suggests a solution for when you are unable to use Run from here or Debug from here with a Katalon Studio offline license.

Cause

When using session-based debugging with an offline license, Katalon Studio sends health-check requests to the active driver session hosted on localhost. Some proxy configurations (often corporate proxies) redirect requests for localhost to an external IP address by default, causing session detection failures.

Solution

To prevent IP redirection from localhost, add localhost or your local host address (e.g. 127.0.0.1) to the Exclude list in Katalon Studio Proxy settings.

Follow these steps:

1. In Katalon Studio, go to Preferences > Katalon > Proxy.
2. Open the System proxy settings.
3. If you are using Manual proxy configuration, add localhost and 127.0.0.1 to the Excludes field.
4. Apply the changes, then reconnect or rerun the browser session.
5. Run the test case and try again.

For more information about configuring proxy settings, see Configure Proxy Preferences in Katalon Studio.