BUG: InDesign ExtendScript - textVariableInstances.add always inserts first variable

When using ExtendScript to insert a TextVariableInstance with a specific textVariable, InDesign always inserts the first variable in the document (index 0), regardless of the provided textVariable argument. This happens even if a dummy instance is created and removed as a workaround. The bug occurs in new documents and affects all variable types. Steps to reproduce: 1. Create a new document. 2. Add multiple text variables (e.g. 'Dateiname', 'Bildname', etc.). 3. Use ExtendScript to insert a TextVariableInstance with a specific variable: insertionPoint.textVariableInstances.add({ textVariable: desiredVariable }); 4. Check the inserted instance: It always references the first variable in the document. Expected: The inserted TextVariableInstance should reference the variable passed in the textVariable argument. Actual: The inserted instance always references the first variable (index 0). Workarounds: - Creating and removing a dummy instance does not solve the issue. - Manual insertion via UI works as expected. Environment: - InDesign version: 26.2, 25.0, - OS: 26.2 // InDesign ExtendScript: Create new A4 page, text frame, insert all text variables if (app.documents.length === 0) { var doc = app.documents.add(); } else { var doc = app.activeDocument; } doc.documentPreferences.pageWidth = "210mm"; doc.documentPreferences.pageHeight = "297mm"; var page = doc.pages.add(); var margin = 20; var tf = page.textFrames.add(); tf.geometricBounds = [margin, margin, 297 - margin, 210 - margin]; var vars = doc.textVariables; var insertPos = tf.insertionPoints[0]; for (var i = 0; i < vars.length; i++) { // Insert line break before each variable (dummy workaround) if (i > 0) { insertPos.contents = "\r"; insertPos = tf.insertionPoints.lastItem(); } // Initialize variable with dummy instance (workaround for InDesign bug) var dummy = tf.insertionPoints .lastItem() .textVariableInstances.add({ textVariable: vars[i] }); dummy.remove(); // Insert variable name as label insertPos.contents = vars[i].name + ": "; insertPos = tf.insertionPoints.lastItem(); // Insert variable instance var instance = insertPos.textVariableInstances.add({ textVariable: vars[i] }); $.writeln( "Inserted: " + vars[i].name + " (Index: " + vars[i].index + ") | Instance.associatedTextVariable: " + (instance.associatedTextVariable ? instance.associatedTextVariable.name : "unknown"), ); insertPos = tf.insertionPoints.lastItem(); } $.writeln("All variables have been inserted on a new page.");

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