Error message - GPU processing failed

[Paula Lightfoot]

Hello,
I've used Photoscan Professional v. 1.3 to create dense point clouds from UAV imagery at moderate and high quality, but when I try to create one at ultra-high quality from the same project I get the error message "hierarichal SGM failed. GPU processing failed, switching to CPU mode, unspecified launch failure".  Processing continues for a while using just the CPU, but it does not manage to complete.  This has happened twice. The GPU device is NVIDIA GeForce GTX 780 (12 cores @ 954 MHz) and it is ticked as enabled in preferences.  Please can you give me any advice?
Thanks!
Paula

[Alexey Pasumansky]

Hello Paula,

It seems to be somewhat similar to one of the following issues:
http://www.agisoft.com/forum/index.php?topic=6565.0
http://www.agisoft.com/forum/index.php?topic=6548.0

We are working on the solution at the moment.

[Paula Lightfoot]

Thanks Alexey,
I hadn't seen those posts, but it is definitely the same thing, mine also says "unspecified launch error at line 67". 
Paula