According to tech news site TweakTown, WhatsApp's developers made the decision to pull the popular text messaging application from Microsoft's Windows Phone Store due to a major incompatibility with Windows Phone 8.1. The company says that the incompatibility was discovered during recent beta testing and proved to be detrimental to the apps functionality on Windows Phone 8.1.

With Windows Phone 8.1 releasing in just over a month, the developers have just a short time to remedy the issues and prep Facebook's largest messaging platform for release, or it will quickly be replaced by the myriad of other messaging apps that do work on Windows Phone 8.1. 

WhatsApp development team made a statement about the issue. "Unfortunately due to technical issues, we have chosen to un-publish WhatsApp Messenger on the Windows Phone platform. We are working closely with Microsoft to resolve the issues and hope to return to the store shortly. We apologize to our users for the temporary inconvenience," said the development team.