Consider the following scenario:
You have a Lumia 2520 camera app installed on a Windows RT 8.1-based computer.
You start the camera app, and then start to record a video.
After 10 to 15 seconds, you stop recording video.
In this scenario, the camera app crashes.
How to obtain this update
To resolve this issue, install update rollup 2903939. For more information about how to obtain this update rollup package, click the following article number to go to the article in the Microsoft Knowledge Base:
2903939 Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 update rollup: December 2013
To apply this update, you must be running Windows RT 8.1.
To apply this update, you do not have to make any changes to the registry.
You do not have to restart the computer after you apply this update.
Update replacement information
This update does not replace a previously released update.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.