Hi All, Currently trying to load a UIWebView in a separate view, and from time to time (but not always), the program crashes with the following error: But the problem does not appear when I run the program on device. And it seems there is no corresponding record in Google (one actually, but no solution mentioned). For safety caution, I already set the max concurrent operation to be 1, and the main UI thread would not load any other webview. Any hint please? Thanks.