Emulator 10240 mobileSeems a blocking bug may interfere with Microsoft’s plans to release Windows 10 Mobile Build 10240 as the next preview build to Windows Insiders. As reported earlier, Build 10240 was the preview release candidate and even was teased by none other than Joe Belfiore. But Gabe Aul has today revealed that  blocking bug has rendered Build 10240 out of queue and a new build is being worked upon.