Developers reporting major lockup problems with Xcode

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Over the past few days, Apple’s developers support forums have lit up over complaints about the current version of Xcode (Version 12.4 (12D4e)), the program that developers use to make apps for iOS and Mac, are having major lock up problems when trying to use the app.

The discussions center around the app frequently locking up and showing the “beach ball of death” when trying to even use the program.

Developer Satcol, who opened the discussion said:

After upgrading to Big Sur and Xcode 12.2, the app crashes every time I select the behaviors preference pane.

I can see the following error in the crash report:

**Code Block**
ProductBuildVersion: 12B45b
Crashing on exception: The window has been marked as needing another Layout Window pass, but it has already had more Layout Window passes than there are views in the window.
<NSPanel: 0x7f9a85f69130> 0x9ed (2541) {{545, 363}, {830, 552}} Behaviors enAnyone else experiencing this?

The 27 replies to this question keep growing, with most developers filing a bug report directly to Apple. At the time of this writing, no comment from Apple.