I've just switched to using Xcode Cloud to make a build with WebUI module.
The Xcode Cloud build for my project fails with the same error on iOS, macOS and visionOS:
Sending 'result' risks causing data races
(in WebViewProxy.swift, line 174)
I can build fine locally in Xcode 26.3 and upload to the App Store manually, but Xcode Cloud (which uses Xcode 26.4) fails to build due to this error.
I've just switched to using Xcode Cloud to make a build with WebUI module.
The Xcode Cloud build for my project fails with the same error on iOS, macOS and visionOS:
Sending 'result' risks causing data races
(in WebViewProxy.swift, line 174)
I can build fine locally in Xcode 26.3 and upload to the App Store manually, but Xcode Cloud (which uses Xcode 26.4) fails to build due to this error.