In Xcode 10, I'm having this issue where previously working extensions (from the store and some of mine), that have been working fine for a long time, are suddenly disappearing from the Editor menu and System Prefs - > Extensions.Restarting Xcode doesn't help.Restarting Mojave doesn't help.The only thing that helps is downloading a fresh install of Xcode (clearly an unworkable solution).Is anybody else experiencing this or has managed to resolve it?

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: 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 en Anyone else experiencing this?

It's been sometime since I've used this feature.I'm currently running latest Xcode Version 7.3 (7D175), trying to test an app by selecting a .xcappdata package in scheme options.It does not seem to work on the simulator.Is anyone else experiencing this issue?

After upgrading to Xcode Version 12.2 (12B45b), all my extensions are no longer showing, in the editor menu. Extensions are present in system preferences and selected. Anyone else experiencing this?