Unity Issue Tracker - "ArgumentOutOfRangeException" errors are thrown every time a keyboard key is pressed when renaming a component in UI Builder with a symbol and changing the name after label attribute warning

Fixed

Fixed in 6000.0.54f1, 6000.1.13f1, 6000.2.0b11, 6000.3.0a2

Votes

Found in

Issue ID

Regression

"ArgumentOutOfRangeException" errors are thrown every time a keyboard key is pressed when renaming a component in UI Builder with a symbol and changing the name after label attribute warning

-

May 29, 2025

Steps to reproduce:

Create a new Unity project using Universal 3D template
Create a new UI Document (Assets > Create > UI Toolkit > UI Document)
Open the created UI Document
Add a Label from Library to the Hierarchy in UI Builder window
Rename the Label in the Hierarchy to "asdasd" and save
Change the Label name in the Inspector to "asd'" (with the ' symbol) and press Enter
After the label attribute warning is shown, press Enter again to select the whole name string in the Inspector
Press any keys on the keyboard (for example "asd")
Observe the Console window

Actual results: Every time a key is pressed an "ArgumentOutOfRangeException: startIndex cannot be larger than length of string." error is thrown

Expected results: No errors are thrown

Reproducible with versions: 6000.0.50f1, 6000.1.6f1, 6000.2.0a8, 6000.2.0b4

Not reproducible with versions: 2022.3.62f1, 6000.2.0a7

Tested on (OS): macOS SIlicon Sequoia 15.3