I’m seeing the same problem with UPBV2 and Unity 1.9.1784.21.

Update:

Downloaded latest version (1.6.1062.39) and it loads now.

I presume this was a fix.

Same problem here. Was working fine, but after re-booting after latest windows update, Unity no longer loads.

Update:

installed version 1.6.677.30

Viking now can see the UPBV2 - appears to be working fine now. Will post if I encounter any problems.

Can you please confirm if there was a fix in this version?

The latest version of Unity (1.6.571.12) causes Starkeeper's Viking Software to fail to recognize my UPBV2. I selected the Unity REST / API as usual, but it fails to allow the UPBV2 Device to be selected. When it scans for devices, it returns error messages. It appears to be communicating with the U...

Ok Evan politely pointed out that it was likely that I hadn’t tightened the coupling set screws enough. Turns out that despite my checking this (more than once, I thought), it appears he was right.

Think everything is in order now.

I just purchased and installed a Focus motor kit which I’m using an Ultimate Powerbox V2 to control. The installation was fine and hardware and software work, but the backlash seems excessive, so much so that this is not a usable autofocus solution. By simple visual inspection, the backlash exceeds ...