UiPath Selectors Using idx Attributes Can Cause Intermittent Automation Failures

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A UiPath developer warns that selectors containing an idx attribute often cause robots to fail or click the wrong element, since idx reflects only an element's position in the UI hierarchy. Layout changes such as an added table column or a popup can shift that position, making failures seem random. UiPath's Workflow Analyzer rule UI-REL-001 flags such selectors and recommends avoiding them. Developers are advised to replace idx with stable attributes like name, id, automationid, or innertext, use wildcards where values vary, and add anchors or fuzzy and image fallbacks. Searching projects for idx= is suggested as a quick way to find risky selectors before they fail in production.

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