KB-1923 Repeated "You Are Already Editing" warnings in Interface and Rule Designers

Symptoms

Designers repeatedly see a warning about editing an interface or rule in another browser window, even if there is no other browser window open with the interface or rule:

You Are Already Editing
You are editing this interface in another browser window.
View the interface in read-only mode to avoid overwriting any of your unsaved changes.

Cause

This error occurs due to an interaction of Appian front-end code with Google Chrome 73.

Action

Upgrade to Google Chrome 74 or higher, and click "Edit Anyway" to break the editing lock.

Workaround

Use another supported browser, such as Mozilla Firefox or Internet Explorer 11.

Affected Versions

This article applies to Appian 17.1 and newer with Google Chrome 73 as a browser.

Last Reviewed: April 2019