Problem with ROS4.6 VirtualAP Crashes

I am have the a problem with opening an existing virtual AP in Winbox (all versions) and from Dude Winbox, I receive the following error…

Microsoft Visual C++ Runtime Library
This application has requested the Runtime to terminate it in an unusual way.
Please contact the application’s support team for more information.
{See attached}

I am only having this problem with ROS 4.6 with RB153, RB493, RB411AR and Crossroads. I have even reset the config and still have the same problem.
winbox 4.6.JPG

http://forum.mikrotik.com/t/routeros-4-6-and-virtual-ap-problem/36077/1